Number of ON cells at generation n of 2-D cellular automaton in which a cell is ON iff either 1, 2 or 3 of its eight neighbors were ON at previous generation, starting with a single ON cell.
A246308
Number of ON cells at generation n of 2-D cellular automaton in which a cell is ON iff either 1, 2 or 3 of its eight neighbors were ON at previous generation, starting with a single ON cell.
Terms
- a(0) =1a(1) =8a(2) =20a(3) =28a(4) =56a(5) =52a(6) =124a(7) =64a(8) =184a(9) =128a(10) =304a(11) =136a(12) =312a(13) =276a(14) =544a(15) =260a(16) =472a(17) =496a(18) =796a(19) =404a(20) =720a(21) =720a(22) =1220a(23) =540a(24) =972a(25) =840a(26) =1724a(27) =808a(28) =1356a(29) =1268
External references
- oeis: A246308