56651

Appears in sequences

• a(n) = Sum_{k=0..n-1} T(n,k) * T(n,k+1), with T given by A026747.at n=7A027224
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 68.at n=6A031746
• Values that show the slow decrease in the Andrica function Af(k) = sqrt(p(k+1)) - sqrt(p(k)), where p(k) denotes the k-th prime.at n=19A084977
• Expansion of Product_{k > 0} (1 + f(k)*x^k), where f(n) = A147952(n).at n=36A147953
• a(n) = 49*n^2 + 7.at n=33A158481
• Total sum of nonprime parts in all partitions of n.at n=28A194545
• Number of n X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically.at n=5A207757
• Number of nX6 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically.at n=5A207760
• Number of 6 X n 0..1 arrays avoiding 0 0 0 and 1 0 1 horizontally and 0 1 1 and 1 0 1 vertically.at n=5A207766
• Number of partitions of 2n into distinct parts < n.at n=39A231429