Number of (n+2)X(1+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3.
A251951
Number of (n+2)X(1+2) 0..2 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3.
Terms
- a(0) =2172a(1) =15246a(2) =117100a(3) =922890a(4) =7415658a(5) =60395332a(6) =495518534a(7) =4085061316a(8) =33782603954a(9) =279926794186
External references
- oeis: A251951