Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 222", based on the 5-celled von Neumann neighborhood.
A270939
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 222", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =5a(2) =20a(3) =60a(4) =260a(5) =1148a(6) =4908a(7) =19800a(8) =79804a(9) =324408a(10) =1301600a(11) =5225644a(12) =20917704a(13) =83744756a(14) =335197576a(15) =1340967308
External references
- oeis: A270939