Number of (n+2)X(4+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 4 5 or 6.
A251833
Number of (n+2)X(4+2) 0..3 arrays with no row, column, diagonal or antidiagonal in any 3X3 subblock summing to 3 4 5 or 6.
Terms
- a(0) =97316a(1) =2298772a(2) =60982362a(3) =1464435968a(4) =35836727866a(5) =887220145536
External references
- oeis: A251833