Number of n X 4 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A269031
Number of n X 4 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =36a(1) =216a(2) =2166a(3) =18384a(4) =146064a(5) =1114848a(6) =8277072a(7) =60218112a(8) =431354928a(9) =3052215072a(10) =21383561232a(11) =148585984320
External references
- oeis: A269031