A097981 Cell populations in the development of the 2 X 2 square with the 2D cellular automaton rule seeds (/2).
4, 8, 12, 16, 24, 32, 52, 40, 56, 72, 72, 92, 128, 140, 136, 160, 152, 200, 244, 236, 264, 232, 268, 360, 316, 416, 320, 384, 436, 412, 500, 492, 500, 524, 680, 584, 744, 700, 764, 884, 896, 748, 1056, 864, 888, 992, 1036, 1060, 1296, 1268, 1436, 1408, 1472
Offset: 0
Keywords
Examples
a(0) = 4 because the 2 X 2 square contains 4 cells. a(1) = 8 because 8 cells are neighbors of exactly 2 of the original 4 cells. a(2) = 12 because 12 cells are neighbors of exactly 2 of the previous 8 cells.
Links
- Eric M. Schmidt, Table of n, a(n) for n = 0..1000
- Eric M. Schmidt, C++ code to compute this sequence
- Mirek Wojtowicz, Information on many 2D cellular automata
- Index entries for sequences related to cellular automata
Extensions
Offset changed by Eric M. Schmidt, Mar 10 2013