56204

Appears in sequences

• Number of permutations p of [n] such that 1^p(1) + 2^p(2) + 3^p(3) + ... + n^p(n) is prime.at n=9A073111
• Number of partitions of 2n in which both odd parts and parts that are multiples of 3 occur with even multiplicities. There is no restriction on the other even parts.at n=30A101230
• Denominators of signed Egyptian fractions 1/sqrt(n) with sums converging to 2.at n=2A226129
• Number of nX4 0..1 arrays with every element equal to 0, 1 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=12A302159
• Number of nX5 0..1 arrays with every element unequal to 0, 1, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=8A316308
• Number of collinear triples in a 4 X n rectangular grid.at n=43A334706