Number of (n+2)X9 0..3 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

A184572

Number of (n+2)X9 0..3 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

Terms

    a(0) =107058241a(1) =2816118529a(2) =43935544294a(3) =503785839330

External references