Number of 4Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.
A269217
Number of 4Xn 0..3 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling three exactly once.
Terms
- a(0) =0a(1) =11424a(2) =361728a(3) =12548544a(4) =394072704a(5) =11985002256a(6) =354189986208
External references
- oeis: A269217