Number of (n+2)X4 0..5 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

A186173

Number of (n+2)X4 0..5 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Terms

    a(0) =10084236a(1) =311128593a(2) =6520730198a(3) =105970767207

External references