Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1.
A256805
Number of (n+2)X(3+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 0 or 1 and no column sum 0 or 1.
Terms
- a(0) =237a(1) =1167a(2) =5891a(3) =28655a(4) =140031a(5) =688353a(6) =3375943a(7) =16546465a(8) =81148017a(9) =397969727a(10) =1951494975a(11) =9569654587a(12) =46928263987a(13) =230127443349
External references
- oeis: A256805