56444

Appears in sequences

• Numbers m such that m, m' and m'' are in arithmetic progression, where m' and m'' are the first and second arithmetic derivatives of m.at n=26A212409
• Number of (n+1) X (7+1) 0..3 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).at n=12A235288
• Number of partitions of n*(n-1)/2 into at most three parts.at n=40A274233