-4507

Appears in sequences

• Hankel transform of A105872.at n=5A176290
• a(n) = Sum_{k=0..n} (-1)^k*P(n,k)*k!, where P(n,k) is the number of partitions of n into k parts.at n=7A260845
• Square array read by ascending antidiagonals: number of m-shape Euler numbers.at n=35A260877
• First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 315", based on the 5-celled von Neumann neighborhood.at n=39A271249