Block on table

Block on table
x = 4, y = 5, rule = B3/S23 2o$2o2$4o$o2bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
View static image
Pattern type	Strict still life
Number of cells	10
Bounding box	4 × 5
Frequency class	17.4
Static symmetry	Unspecified
Discovered by	Unknown
Year of discovery	1972
Rules Outer-totalistic rules B/S23 – B3678/S012345678 # of rules 211 = 2048 Isotropic rules B/S2ae3ar – B2-ac34-ain5-r678/S012345678
Glider synthesis Fewest gliders 4 Catagolue-generated RLE synthesis Uploaded synthesis RLE blockontable_synth.rle
Pattern files Plaintext blockontable.cells RLE blockontable.rle
Identifiers apgcode xs10_32qr Niemiec ID 10.25 Pentadecathlon ID 10.2

Block on table is a 10-bit still life.

Commonness

Main article: List of common still lifes

Block on table is the thirty-fourth most common still life in Achim Flammenkamp's census, being less common than moose antlers but more common than block on dock. It is also the forty-fourth most common object on Adam P. Goucher's Catagolue.

It is the most common still life where a block stabilizes an unstable pattern, being barely ahead of the block on dock.

Noah's ark produces blocks on tables along with many common objects.

Glider synthesis

All strict still lifes with a population of 23 or fewer cells, all oscillators with 16 or fewer cells, and all spaceships with 35 or fewer cells are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.

Gallery

12b2o$12b2o2$10b4o$10bo2bo3$10b2ob3o$9bobo$7bo8bo$7bo9bo2b2o$2ob2o2bo 8b2o3bo$2obo17bob2o$3bo3b2o8bo2b2ob2o$3b2o2bo9bo$8bo8bo$13bobo$9b3ob2o 3$11bo2bo$11b4o2$11b2o$11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 7 THUMBSIZE 2 ZOOM 12 ]]

A period-14 oscillator found by Charity Engine on October 29, 2022, where a block on table is used as a rock. (click above to open LifeViewer) Catagolue: here

2b2o$4bo$o2bo$3o4$4b2o$5bo$5bob2o$4b2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 10 THUMBSIZE 2 ]] an instance where block on table can be used as a catalyst (click above to open LifeViewer) See also Block Table Dueling banjos, where a block on table is used as a catalyst References External links Block on table at Adam P. Goucher's Catagolue Block on table at the Life Lexicon The 25 ten-bit still-lifes at Mark D. Niemiec's Life Page