Bun with feather

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Bun with feather
x = 6, y = 5, rule = B3/S23 3bo$obobo$2obobo$3bobo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
Pattern type Strict still life
Number of cells 12
Bounding box 6 × 5
Frequency class 28.6
Static symmetry C1
Discovered by Robert Wainwright
Everett Boyer
Year of discovery 1973

The bun with feather is a 12-cell still life. It can also be seen as a hook with tail with a parasitic beehive-like growth.

Construction

This still life is known to be constructible with 5 gliders.[1] Several known alternate syntheses are available in Mark Niemiec's database.[2]

x = 17, y = 24, rule = B3/S23 14bo$14bobo$14b2o2$bo$2bo$3o7b2o$10bobo$10bo$6b2o$6bobo$6bo10$b3o$3bo$2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 8 X 0 Y -4 AUTOSTART GPS 12 T 0 PAUSE 3 T 15 PAUSE 1 T 53 PAUSE 1 T 89 PAUSE 1 T 90 PAUSE 2 LOOP 91 ]]
A 5G synthesis[1][3]
(click above to open LifeViewer)
x = 33, y = 24, rule = B3/S23 27bobo$28b2o$28bo4$21bo$22b2o$8bobo4bobo3b2o$9b2o5b2o12b3o$9bo6bo13bo$3bo27bo$obobo$2obobo6b2o$3bobo5bobo3b2o$3b2o8bo2bobo$18bo2$27b2o$26b2o$28bo$17b2o$18b2o$17bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 10 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 3 T 20 PAUSE 1 T 21 PAUSE 2 LOOP 22 ]]
A 9G synthesis[2]
(click above to open LifeViewer)

Occurrence

Among still lifes with 12 cells, this is the 52nd most common still life according to Catagolue.

There are no collisions in octohash, octo3obj or octo3g databases with this still life occurring in the ash.

References

  1. 1.0 1.1 xs12_642tic at Adam P. Goucher's Catagolue
  2. 2.0 2.1 The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-118.rle)
  3. Re: Suggested LifeWiki edits (discussion thread) at the ConwayLife.com forums

External links