300993domain: NAppears in sequencesa(n) + a(n+1) + a(n+2) = n^6, a(1)=a(2)=0.at n=10A152731Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 414", based on the 5-celled von Neumann neighborhood.at n=9A272013