51453

Appears in sequences

• Sort then Add, a(1) =9.at n=17A033896
• Sort then Add, a(1)=27.at n=15A033903
• Partial sums of the 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.at n=41A272051