Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum not 0 1 2 7 8 or 9 and every diagonal and antidiagonal sum 0 1 2 7 8 or 9.
A251980
Number of (n+2)X(5+2) 0..3 arrays with every 3X3 subblock row and column sum not 0 1 2 7 8 or 9 and every diagonal and antidiagonal sum 0 1 2 7 8 or 9.
Terms
- a(0) =463054a(1) =16324414a(2) =196459816a(3) =1175144274a(4) =10630171636a(5) =144374047558
External references
- oeis: A251980