Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 249", based on the 5-celled von Neumann neighborhood.
A271013
Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 249", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =1a(1) =4a(2) =40a(3) =176a(4) =828a(5) =3253a(6) =13396a(7) =53864a(8) =215761a(9) =868457a(10) =3463137a(11) =13843993a(12) =55410869a(13) =221698185a(14) =886916925a(15) =3547643840
External references
- oeis: A271013