572145

Appears in sequences

• T(n,k) = Number of (n+2) X (k+2) 0..4 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.at n=10A186579
• T(n,k) = Number of (n+2) X (k+2) 0..4 arrays with every 3 X 3 subblock commuting with each horizontal and vertical neighbor 3 X 3 subblock.at n=14A186579
• Number of rational solutions to the S-unit equation x + y = 1, where S = {prime(i): 1 <= i <= n}.at n=12A362567