54509

Appears in sequences

• Number of 2's in all partitions of n.at n=37A024786
• Number of occurrences of smallest prime factor in all partitions of n-th composite number: a(n)=A066633(A002808(n), A056608(n)).at n=24A091109
• a(n) = round(sqrt(Fibonacci(n))).at n=47A100665
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 806", based on the 5-celled von Neumann neighborhood.at n=8A273607