Number of nX6 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A269033
Number of nX6 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =240a(1) =2208a(2) =44760a(3) =785124a(4) =13031664a(5) =208867428a(6) =3266423688a(7) =50155587360a(8) =759280601376
External references
- oeis: A269033