Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 209", based on the 5-celled von Neumann neighborhood.
A270892
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 209", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =4a(2) =28a(3) =136a(4) =600a(5) =2680a(6) =11448a(7) =47188a(8) =192612a(9) =779772a(10) =3142520a(11) =12628508a(12) =50661504a(13) =203032708a(14) =813165672a(15) =3255505980
External references
- oeis: A270892