Number of (n+2)X(7+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 0 2 4 5 7 or 9.
A251651
Number of (n+2)X(7+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) =6978a(1) =49956a(2) =163318a(3) =610082a(4) =5248890a(5) =17185778a(6) =63447690a(7) =562400186a(8) =1826236602a(9) =6707952986a(10) =60713749434a(11) =196015117610a(12) =717238558554
External references
- oeis: A251651