56012

Appears in sequences

• Number of length 4 1..(n+1) arrays with every leading partial sum divisible by 2, 3, 5, 7 or 11.at n=18A254951
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 78", based on the 5-celled von Neumann neighborhood.at n=8A270092
• a(n) = floor(b(n)), where b(1) = 1 and b(n) = b(n-1) + Sum_{k=1..n-1} b(k)/(n-1).at n=46A376995