x = 1157, y = 137, rule = B3678/S34678
244b4o$243b4obboo23bo$241b9obo8bo11bobbo$240bob9o4boob4o11b5o$239bob
10obb10obo7b5o3bo$239b21oboobbo5b8o$239bob10obb10obo7b5o3bo$240bob9o4b
oob4o11b5o805bo$241b9obo8bo11bobbo797bo9boo$243b4obboo23bo796b4o4bob4o
9boo15bo$244b4o822b6o3bob3obo3boob6o12b3o$309bo759b16obb11o10b5o$262b
oo45bobb3o753b29o10bob4o$261b4oboo11bo29b7o11bobo739b16obb11o10b5o$
259bob7o7b5o30b7obb3o4bob3o739b6o3bob3obo3boob6o12b3o$258b9obo3boobob
5o27b7obbob4ob4oboo739b4o4bob4o9boo15bo$257b11obb10o9bo19b6o3boboobob
oob3o3bo738bo9boo$256b25o8bobo17b5o4boob5obob5ob3o745bo$257b16obb7o6b
oobo16b7o7boboo3bob7o$258b6o3bob3obobboob3o7b3o17b6o10b3ob9o$259b4o4bo
b4o5bobboo24boobb6o10boobb5o$261bo9boo7boboo25boobbobbo11bobb5o$271bo
9bo29bo3bo15b4o$332b3o$$1060bo$1059boboboo$261booboo37bo753bob6o6bo21b
obo$260bob3obo5bo3bo8boo15boo752b8obo3b6obbo7b5obo3bo$259bob5o4b5o5boo
b6o12boo752b10obb6obob4o6boobbo3boo$258bob6obb8obb11o14bo750b20o3bobo
5b6obb4o$258b30o767b10obb6obob4o6boobbo3boo$258bob6obb8obb11o14bo752b
8obo3b6obbo7b5obo3bo$259bob5o4b5o5boob6o12boo754bob6o6bo21bobo$260bob
3obo5bo3bo8boo15boo755boboboo$261booboo37bo756bo4$270b3oboo$270b5obo5b
obo4bo7bobobboobo$267b9o4b5o3bo6b3obo5boo741boo$266bob8obb7o3boo6boboo
bbob3o742bo$266b18oboboboo3bob6ob5o737bo3bo3boo$266bob8obb7o3boo6boboo
bbob3o737boob8o8boo9boo14b3o$267b9o4b5o3bo6b3obo5boo736b11obo3boob3o7b
6o$270b5obo5bobo4bo7bobobboobo736b13obb8obb3ob7o12bobo$270b3oboo765b
36o$1042b13obb8obb3ob7o12bobo$1043b11obo3boob3o7b6o$1044boob8o8boo9boo
14b3o$1045bo3bo3boo$1049bo$1048boo4$136bo$8boo124boboo$3bobobboboboo
121b3o4boo13bo739bo$bbobb5oboobo5booboo52bobo49bobboob3obb5o11booboo
558bobobo173bo4bo$bob11o4b9o49bob4obo41boobobo3b12o10b5obo547bobooboob
obob5o168b3obb6o$ob12obb11obbo41bob10oboo38bob20o9b7obo544b4obbobb10o
167b4ob6obboo$33o26b3obbo6bob14obbobboo29b22oboboo4bob11o541b18o164b3o
bb12obbo$32o21boob10o3bob29o25b28obb11o543b16obo165b17obo$ob4obb3ob3ob
3ob3ob3ob5obo18boo3b3ob3o3bob27oboo24b43obbo538bob16o163b21o$bobobboob
obobobobobobobobobobobobo20b5obb5ob32obo22b47o539b18o161b22o$bb3o27boo
20bo5bob38o22b45obobobo535b19o161b21o$54bobbo4b37o23b45obobobo535b18o
162bobob18o$bb3o27boo20bo5bob38o22b45obobobo535b19o161b21o$bobobboobob
obobobobobobobobobobobo20b5obb5ob32obo22b47o539b18o161b22o$ob4obb3ob3o
b3ob3ob3ob5obo18boo3b3ob3o3bob27oboo24b43obbo538bob16o163b21o$32o21boo
b10o3bob29o25b28obb11o543b16obo165b17obo$33o26b3obbo6bob14obbobboo29b
22oboboo4bob11o541b18o164b3obb12obbo184boo$ob12obb11obbo41bob10oboo38b
ob20o9b7obo544b4obbobb10o167b4ob6obboo185boo55bo$bob11o4b9o49bob4obo
41boobobo3b12o10b5obo547bobooboobobob5o168b3obb6o186bob3obboo48b3o$bbo
bb5oboobo5booboo52bobo49bobboob3obb5o11booboo558bobobo173bo4bo187boobb
6obo5boboo38b3obboo$3bobobboboboo121b3o4boo13bo739bo191bob10o4b6o28boo
b3obo3bobboo$8boo124boboo950bob11obb7obo28bobobbobobbobboobo$136bo951b
23o26b15ob4o$933bo23bo130bob11obb7obo26b19o$928bo4booboo15booboboboo9b
o117bob10o4b6o25b20o$926bobob8o6booboo4b10obo7bo117boobb6obo5boboo25b
13obbooboo$925bobb9obo3b8o3b10o4bobboo3boo115bob3obboo37boob7obo$924b
14obb19ob5obb10o117boo44b3obobboo$923b21ob6ob6obobo5b4o4b3o116boo47bo$
924b9obb7o3b4o3b6o10bobboo$925bob5obo3b6o3boobbobb4obobo9booboo$927b6o
6bo6bobo4bobobooboo9boo$270b3oboo651boboboo21b3obboo9bo$270b5obo5bobo
4bo7bobobboobo622bo27boboo$267b9o4b5o3bo6b3obo5boo649bo$266bob8obb7o3b
oo6boboobbob3o$266b18oboboboo3bob6ob5o602b3oboo$266bob8obb7o3boo6boboo
bbob3o603b5obo5bobo4bo7bobobboobo$267b9o4b5o3bo6b3obo5boo600b9o4b5o3bo
6b3obo5boo$270b5obo5bobo4bo7bobobboobo600bob8obb7o3boo6boboobbob3o$
270b3oboo630b18oboboboo3bob6ob5o$906bob8obb7o3boo6boboobbob3o$907b9o4b
5o3bo6b3obo5boo$910b5obo5bobo4bo7bobobboobo$261booboo37bo606b3oboo$
260bob3obo5bo3bo8boo15boo$259bob5o4b5o5boob6o12boo$258bob6obb8obb11o
14bo$258b30o$258bob6obb8obb11o14bo$259bob5o4b5o5boob6o12boo$260bob3obo
5bo3bo8boo15boo$261booboo37bo4$332b3o$271bo9bo29bo3bo15b4o$261bo9boo7b
oboo25boobbobbo11bobb5o$259b4o4bob4o5bobboo24boobb6o10boobb5o$258b6o3b
ob3obobboob3o7b3o17b6o10b3ob9o$257b16obb7o6boobo16b7o7boboo3bob7o$256b
25o8bobo17b5o4boob5obob5ob3o$257b11obb10o9bo19b6o3bobooboboob3o3bo$
258b9obo3boobob5o27b7obbob4ob4oboo$259bob7o7b5o30b7obb3o4bob3o$261b4ob
oo11bo29b7o11bobo$262boo45bobb3o$309bo$244b4o$243b4obboo23bo$241b9obo
8bo11bobbo$240bob9o4boob4o11b5o$239bob10obb10obo7b5o3bo$239b21oboobbo
5b8o$239bob10obb10obo7b5o3bo$240bob9o4boob4o11b5o$241b9obo8bo11bobbo$
243b4obboo23bo$244b4o!

A period 2160 sideways rocket rake.
This is the first in a series of rakes which has arbitrarily large periods.
Moving the leftmost three blobs forwards by 90 cells increases the period
of the puffer by 720 generations.  This can be repeated as often as desired
to produce a puffer having an arbitrarily large period.

What happens in this series of puffers is that a wick is built by a
wickstretcher.  The wick is ignited by a pair of period 360 sideways
rocket puffers, which leaves some junk at the beginning and end of
its burn, but otherwise burns cleanly.  A period 360 spark generator
and some associated rockets turns one of the pieces of junk into the
sideways rocket. The other pieces of junk are deleted.

The puffers can be easily converted into arbitrarily large period     
spaceships by removing the three rockets at the upper right.          
								      
David I. Bell, October 1998
