Number of (n+2)X(2+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 4 5 or 7.
A251994
Number of (n+2)X(2+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 2 4 5 or 7.
Terms
- a(0) =6094a(1) =77488a(2) =1209382a(3) =19275074a(4) =308552418a(5) =4946174244a(6) =79312163374
External references
- oeis: A251994