p15 pre-pulsar spaceship

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p15 pre-pulsar spaceship
x = 61, y = 43, rule = B3/S23 3b3o10b3o23b3o10b3o$4bobo8bobo25bobo8bobo$6bo8bo29bo8bo$bob5o6b5obo19b ob5o6b5obo$bob2o3b2o2b2o3b2obo19bob2o3b2o2b2o3b2obo$2o5b3o2b3o5b2o17b 2o5b3o2b3o5b2o$5b2ob2o2b2ob2o27b2ob2o2b2ob2o2$4bo12bo25bo12bo$5b3o6b3o 27b3o6b3o$4b4o6b4o25b4o6b4o$3b2o12b2o23b2o12b2o$4bo12bo25bo12bo$2b3o 12b3o21b3o12b3o$2bo16bo21bo16bo$5bo10bo27bo10bo$3bobo10bobo23bobo10bob o$2bo3b2o6b2o3bo21bo3b2o6b2o3bo$3bo5bo2bo5bo23bo5bo2bo5bo$9bo2bo35bo2b o$bob2o4bo2bo4b2obo19bob2o4bo2bo4b2obo$bo3b3obo2bob3o3bo19bo3b3obo2bob 3o3bo$2bo6bo2bo6bo21bo6bo2bo6bo$bo2b2o3bo2bo3b2o2bo19bo2b2o3bo2bo3b2o 2bo$bo2b2obobo2bobob2o2bo19bo2b2obobo2bobob2o2bo$5bo2bo4bo2bo27bo2bo4b o2bo$6bobo4bobo29bobo4bobo$27bo5bo$4b2obob4obob2o9bo5bo9b2obob4obob2o$ 10b2o14bobo3bobo14b2o$2bob2o10b2obo7bo5bo7bob2o10b2obo$2o2bo3b2o2b2o3b o2b2o5bo5bo5b2o2bo3b2o2b2o3bo2b2o$b2obo12bob2o19b2obo12bob2o$3b2obo8bo b2o23b2obo8bob2o$4bo2bo6bo2bo25bo2bo6bo2bo$b2o2bo2bo4bo2bo2b2o4b2o7b2o 4b2o2bo2bo4bo2bo2b2o$bo5b2o4b2o5bo5bobo3bobo5bo5b2o4b2o5bo$b3o3bo6bo3b 3o6bo5bo6b3o3bo6bo3b3o$3b4o8b4o23b4o8b4o$4bo2bo6bo2bo25bo2bo6bo2bo$4bo 12bo25bo12bo$4bob2o6b2obo25bob2o6b2obo$5bo10bo27bo10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 ZOOM 6 TRACKLOOP 15 0 -1/5 ]]
Pattern type Spaceship
Number of cells 494
Bounding box 61×47
Direction Orthogonal
Period 15
Mod 15
Speed c/5
Speed (unsimplified) 3c/15
Heat 496.3
Discovered by Noam Elkies
Year of discovery 1997

The p15 pre-pulsar spaceship is a period 15 c/5 orthogonal spaceship discovered by Noam Elkies in December 1997.[1] It uses the sparks from two period 5 spaceships to shift a pre-pulsar three cells in fifteen generations. The original form of this ship used a much larger spaceship found by Tim Coe, while the form shown at right uses a spaceship found by Paul Tooke. In the following year David Bell found the similar p30 pre-pulsar spaceship.

Image gallery

The original p15 pre-pulsar spaceship, using spaceships found by Tim Coe
RLE: here

See also


  1. Jason Summers' jslife pattern collection.

External links