I-heptomino

I-heptomino is the name given by Conway to the following heptomino. After one generation this converges to the same evolutionary sequence as the H-heptomino.

x = 4, y = 4, rule = B3/S23 2o$bo$b2o$2b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 Z 20 HEIGHT 480 GPS 10 AUTOSTART PAUSE 4 T 100 Z 6 LOOP 300 ]]

(click above to open LifeViewer) RLE: here Plaintext: here

The longest-lasting active region is the standard evolutionary sequence of a Herschel, at the bottom of the pattern.

In the following examples, on the top, there are two six-cell polyplets that follow the I-heptomino sequence. The one on the left becomes the I-heptomino itself, while the one on the right follows a slightly different sequence. On the bottom, there are two houses with one cell removed each; both follow the I-heptomino sequence.

x = 25, y = 21, rule = B3/S23 5bo16bo$5bo15bo$4bo15bo$3bo15bo$3bo15bo$2bo15bo13$b3o17b3o$o3bo15bo3bo $2o2bo15b2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 GPS 6 THUMBSIZE 2 WIDTH 800 HEIGHT 600 ZOOM 9 ]]

(click above to open LifeViewer) RLE: here Plaintext: here

External links

• I-heptomino at the Life Lexicon