Eater head siamese eater tail

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Eater head siamese eater tail
x = 4, y = 7, rule = B3/S23 2o$obo$2bo$2b2o$3bo$3o$o! #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 4 × 7
Frequency class 19.9
Static symmetry Unspecified
Discovered by Robert Wainwright
Everett Boyer
Year of discovery 1973

Eater head siamese eater tail (or eater siamese eater, or eater with nine) is a 12-cell still life.

Commonness

Eater head siamese eater tail is the fifty-eighth most common still life in Achim Flammenkamp's census, being less common than cis-boat on dock but more common than cis-block on long bookend.[1] It is also the sixty-eighth most common object on Adam P. Goucher's Catagolue.[2]

The octo3obj database contains 19 matches for collisions with the still life present in the ash.

Construction

Four gliders suffice to construct this still life.[3] Different known syntheses can be found in Mark Niemiec's database.[4]

x = 23, y = 22, rule = B3/S23 o$b2o$2o3$15b2o$15bobo$15bo3$8b3o$10bo$9bo7$20b2o$20bobo$20bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 10 X 0 Y -2 AUTOSTART GPS 12 T 0 PAUSE 3 T 88 PAUSE 2 LOOP 89 ]]
A 4G synthesis[3]
(click above to open LifeViewer)
x = 90, y = 29, rule = B3/S23 43b2o$43b2o$2o$obo56b3o17b3o$2bo$2b2o38bo45b2o$3bo38bo21b2o18b2o2b2o$ 3o20bo18bo21b2o18b2o$o22bobo9b3o$15bo7b2o$15bo49bo19bo$15bo49bo19bo$ 20bo44bo19bo$19bobo$19bobo$20bo$13b3o4$58bo$57b2o$57bobo4$49b2o18b2o$ 50b2o18b2o$49bo19bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 6 AUTOSTART GPS 12 T 0 PAUSE 3 T 96 PAUSE 2 LOOP 97 ]]
Four 1G seeds from the octo3obj database
(click above to open LifeViewer)

See also

References

  1. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
  3. 3.0 3.1 xs12_178c453 on Catagolue
  4. 12-85.rle at Mark D. Niemiec's Life Page

External links