Caterer on 44P7.2

Caterer on 44P7.2
x = 19, y = 16, rule = B3/S23 5b2o7bo$4bo8bobo$7bo5bobo$3bo3bo4b2obob2o$4o3bo7b2obo$5bo5bob2o$14bo$ 11b3o$8bobo$6bo3bob2o$4b3obobob2o$3bo4b2o$4b4o$7bo$6bo$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 4 ZOOM 14 ]]
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Pattern type	Oscillator
Number of cells	56
Bounding box	19 × 16
Period	21 (mod: 21)
Heat	20.5
Volatility	0.49 | 0.01
Kinetic symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B3/S23 – B378/S2378 # of rules 24 = 16 Isotropic rules B3-y/S2-n3-c – B34cjqt5c6cen78/S234cekqtw5-inr6-ck78
Glider synthesis Fewest gliders 131† Catagolue-generated RLE synthesis †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext catereron44p7.2.cells RLE catereron44p7.2.rle
Identifiers apgcode xp21_g88bdggz01130147obbgzcg2228x4t1u246zx1fy21 Pentadecathlon ID 56P21.1

Caterer on 44P7.2 is a period-21 oscillator composed of a caterer and the unnamed 44P7.2. In terms of its 56 cells, it was the smallest known non-trivial period 21 oscillator until the discovery of caterer on 42P7.1, although jam on 44P7.2 (pictured below) has a smaller bounding box.

Despite being composed of two oscillators of smaller periods (3 and 7 respectively), it is considered non-trivial because it has a single cell that is alive in generation 14 and is dead in its other 20 phases.

Gallery

Generation 14 reveals the single cell with period 21 (in green)

x = 17, y = 16, rule = b3/s23 3b2o7bo4b$3b2o6bobo3b$3bo7bobo3b$bob3o4b2obob2o$obobo2bo5b2obo$o2bo5bo b2o4b$b2o9bo4b$9b3o5b$6bobo8b$4bo3bob2o5b$2b3obobob2o5b$bo4b2o9b$2b4o 11b$5bo11b$4bo12b$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 4 AUTOSTART ]] Jam on 44P7.2 with a smaller bounding box of 17×16 (click above to open LifeViewer) RLE: here Plaintext: here

See also

• Caterer on Beluchenko's p13

External links

• Caterer on 44P7.2 at Adam P. Goucher's Catagolue

• 56P21.1 at Heinrich Koenig's Game of Life Object Catalogs