First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 421", based on the 5-celled von Neumann neighborhood.
A272052
First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 421", based on the 5-celled von Neumann neighborhood.
Terms
- a(0) =7a(1) =-3a(2) =35a(3) =-23a(4) =91a(5) =-79a(6) =151a(7) =-115a(8) =259a(9) =-263a(10) =399a(11) =-347a(12) =563a(13) =-575a(14) =687a(15) =-563a(16) =867a(17) =-907a(18) =1199a(19) =-1135a(20) =1407a(21) =-1419a(22) =1627a(23) =-1487a(24) =1911a(25) =-1971a(26) =2343a(27) =-2191a(28) =2595a(29) =-2595
External references
- oeis: A272052