Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 or 1 and no column sum 0 or 1.

A255026

Number of (n+2)X(7+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 or 1 and no column sum 0 or 1.

Terms

    a(0) =2853a(1) =23077a(2) =206739a(3) =1669286a(4) =13460633a(5) =110131505a(6) =896763036a(7) =7301549016a(8) =59570598618a(9) =485457428280

External references