P28 pre-pulsar shuttle

Pre-pulsar shuttle 28
x = 16, y = 22, rule = B3/S23 bo12bo$b3o8b3o$4bo6bo$3b2o6b2o3$8b3o$2o6bobo3b2o$2o6b3o3b2o4$8b3o$8bob o$8b3o2$2bobo8bo$bo9b2obo$2bo2bo4bo$2bobobo2bobo2bo$3bo2bo2bo2bo$4b2o 4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]]
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Pattern type	Oscillator
Oscillator type	Shuttle
Number of cells	54
Bounding box	22 × 16
Period	28
Mod	14
Heat	33.1
Volatility	0.82
Strict volatility	0.67
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B3/S23 – B3/S2378 # of rules 22 = 4 Isotropic rules B3-ky/S23-kq – B34kq5-ce6-in7e/S234cktyz5aknr6-c78
Glider synthesis Fewest gliders 36† Catagolue-generated RLE synthesis †Can be constructed with 15 gliders using the reverse caber tosser universal constructor.
Pattern files Plaintext prepulsarshuttle28.cells RLE prepulsarshuttle28.rle
Identifiers apgcode xp28_g8gcscy333xoge2z1ii1x676x676z34atsy4ggx62sgzy911 Pentadecathlon ID 54P28.1

Pre-pulsar shuttle 28 is a period-28 pre-pulsar shuttle oscillator. It consists of a pre-pulsar being hassled by two 14-generation shuttle mechanisms.

A smaller 14-generation pre-pulsar shuttle mechanism was found by thunk on November 17, 2016, allowing the construction of a 53-cell variant of the shuttle. This variant was tied with mold on 41P7.2 and T-nosed p4 on 28P7.4 as the smallest known non-trivial period 28 oscillator until the discovery of mold on 34P14 shuttle in 2018.

Gallery

File:Prepulsarshuttle28variant.png A pre-pulsar shuttle 28 variant with a minimum population of 53. View animated image. RLE: here Catagolue: here

See also

• Karel's p28
• Newshuttle
• Pre-pulsar shuttle oscillators

External links

• P28 pre-pulsar shuttle at Adam P. Goucher's Catagolue

• 54P28.1 at Heinrich Koenig's Game of Life Object Catalogs