Number of ON cells at generation n of 2-D cellular automaton in which a cell is ON iff either 1, 2 or 4 of its eight neighbors were ON at previous generation, starting with a single ON cell.
A246309
Number of ON cells at generation n of 2-D cellular automaton in which a cell is ON iff either 1, 2 or 4 of its eight neighbors were ON at previous generation, starting with a single ON cell.
Terms
- a(0) =1a(1) =8a(2) =20a(3) =32a(4) =44a(5) =64a(6) =65a(7) =149a(8) =96a(9) =184a(10) =161a(11) =312a(12) =236a(13) =356a(14) =312a(15) =545a(16) =397a(17) =552a(18) =524a(19) =821a(20) =565a(21) =872a(22) =688a(23) =1129a(24) =929a(25) =1152a(26) =1245a(27) =1440a(28) =1460a(29) =1485
External references
- oeis: A246309