Number of n X 1 0..7 arrays with some element plus some horizontally or vertically adjacent neighbor totalling seven exactly once.
A270111
Number of n X 1 0..7 arrays with some element plus some horizontally or vertically adjacent neighbor totalling seven exactly once.
Terms
- a(0) =0a(1) =8a(2) =112a(3) =1176a(4) =10976a(5) =96040a(6) =806736a(7) =6588344a(8) =52706752a(9) =415065672a(10) =3228288560a(11) =24857821912a(12) =189823367328
External references
- oeis: A270111