Number of (n+2)X5 0..2 arrays with 3X3 subblock sums nondecreasing rightwards and downwards.

A186624

Number of (n+2)X5 0..2 arrays with 3X3 subblock sums nondecreasing rightwards and downwards.

Terms

    a(0) =5109075a(1) =313250283a(2) =19192412328

External references