Number of (n+2)X5 0..4 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

A186090

Number of (n+2)X5 0..4 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Terms

    a(0) =11258613a(1) =280102672a(2) =4527262140a(3) =55707179395a(4) =558643720724

External references