Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 489", based on the 5-celled von Neumann neighborhood.
A272511
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 489", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =4a(2) =32a(3) =160a(4) =712a(5) =3048a(6) =12864a(7) =52440a(8) =210640a(9) =840352a(10) =3353008a(11) =13392000a(12) =53523920a(13) =214003872a(14) =855827888a(15) =3422933120
External references
- oeis: A272511