Mirrored table

Mirrored table
x = 5, y = 4, rule = B3/S23 2ob2o$bobo$bobo$2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
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Pattern type	Strict still life
Number of cells	12
Bounding box	5 × 4
Frequency class	16.2
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	Unknown
Rules Outer-totalistic rules B/S23 – B3578/S012345678 # of rules 211 = 2048 Isotropic rules B/S2ae3r – B2-ac34-ai56-i78/S012345678
Glider synthesis Fewest gliders 4 Catagolue-generated RLE synthesis Uploaded synthesis RLE mirroredtable_synth.rle
Pattern files Plaintext mirroredtable.cells RLE mirroredtable.rle
Identifiers apgcode xs12_raar Niemiec ID 12.25 Pentadecathlon ID 12.9

Mirrored table is a 12-cell still life. It consists of two tables facing each other with one row of dead cells between them.

One of the tables can be moved by two cells to the side, resulting in rotated table.

It is the only 12-cell still life to fit within a 5 × 4 bounding box.

Commonness

Main article: List of common still lifes

Mirrored table is the thirtieth most common still life in Achim Flammenkamp's census, being less common than very long ship but more common than canoe. It is also the thirty-eighth most common object on Adam P. Goucher's Catagolue.

Construction

x = 37, y = 17, rule = B3/S23 35bo$34bo$34b3o3$o2bo$4o2$4o$o2bo2$15bo$15b2o$14bobo6b2o$23bobo5b2o$23bo6b2o$32bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 12 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 2 T 32 PAUSE 1 LOOP 33 ]]

A 4G synthesis (click above to open LifeViewer)

There are known 4-glider syntheses for a mirrored table; a number of known syntheses can be found in Mark Niemiec's database.

The octohash database contains a constellation of two long boats which can serve as a one-glider seed for the mirrored table. The octo3obj database contains five other small constellations of common objects, each of which can also be used as a 1G seed for the mirrored table.

x = 10, y = 9, rule = B3/S23 bo$obo$bobo4b2o$2b2o3b2o$9bo$5bo$4bobo$3bobo$3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 12 X 0 Y -2 AUTOSTART GPS 12 T 0 PAUSE 2 T 28 PAUSE 1 LOOP 29 ]] A 1G seed from the octohash database (click above to open LifeViewer)

x = 59, y = 27, rule = B3/S23 4b2ob2o42bo$4b2ob2o16b2o23bobo$2o9b3o11b2o23bobo$2o9bo18bo13b3o4bo$6b 2o4bo17bo$5bo2bo15b2o4bo$6b2o16b2o27b3o$32b2o10b2ob2o4bo$32b2o10b2ob2o 5bo$24b2o$24bobo$24bo5$11b2o31bo$11b2o31bo$44bo$11b2o$5b3o3b2o35b2o$ 48b2o$2b2o48b2o2b3o$2b2o6b2o40b2o2bo$10bobo34b2o8bo$10bo36b2o3b2o$52b 2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 8 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 2 T 62 PAUSE 1 LOOP 63 ]] Five 1G seeds from the octo3obj database (click above to open LifeViewer)

See also

• Beehive on table
• Block on table

External links

• Mirrored table at Adam P. Goucher's Catagolue
• Mirrored table at the Life Lexicon
• The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (12.25)
• 12.9 at Heinrich Koenig's Game of Life Object Catalogs