Number of n X n 0..5 arrays with some element plus some horizontally or vertically adjacent neighbor totalling five exactly once.
A269759
Number of n X n 0..5 arrays with some element plus some horizontally or vertically adjacent neighbor totalling five exactly once.
Terms
- a(0) =0a(1) =480a(2) =2624640a(3) =170119348800
External references
- oeis: A269759