31866

Appears in sequences

• G.f.: A(q) = exp( Sum_{n>=1} A162552(n) * 3*A038500(n) * q^n/n ).at n=30A161808
• Number of (n+1) X 5 0..2 arrays with every 2 X 2 subblock commuting with each of its horizontal and vertical 2 X 2 subblock neighbors.at n=7A186467
• Number of (n+1)X9 0..2 arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors.at n=3A186471
• Numbers k such that (29*10^k + 259)/9 is prime.at n=22A284741
• Number of partitions of 2*n into exactly n prime powers (including 1).at n=48A341154