Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 and no column sum 0.
A254974
Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 or 1 and no antidiagonal sum 0 or 1 and no row sum 0 and no column sum 0.
Terms
- a(0) =3241a(1) =27211a(2) =260705a(3) =1892418a(4) =14786310a(5) =120085764a(6) =951267911a(7) =7494431489a(8) =59709702434a(9) =473847733773
External references
- oeis: A254974