Number of (n+2) X (n+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 2 4 5 7 or 9.

A251644

Number of (n+2) X (n+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 2 4 5 7 or 9.

Terms

    a(0) =376a(1) =908a(2) =4522a(3) =24706a(4) =482506a(5) =5167050a(6) =63447690a(7) =5347152010a(8) =106694711818

External references