Number of (n+2)X6 binary arrays with 3X3 subblock sums nondecreasing rightwards and downwards.

A186835

Number of (n+2)X6 binary arrays with 3X3 subblock sums nondecreasing rightwards and downwards.

Terms

    a(0) =74088a(1) =1075071a(2) =15478835a(3) =209888936a(4) =1919555447a(5) =17494747887a(6) =156721188699

External references