Number of n X 2 0..5 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling five exactly once.
A269882
Number of n X 2 0..5 arrays with some element plus some horizontally, diagonally, antidiagonally or vertically adjacent neighbor totalling five exactly once.
Terms
- a(0) =6a(1) =432a(2) =11280a(3) =250992a(4) =5125008a(5) =99482544a(6) =1867222224a(7) =34216907760a(8) =615877284624
External references
- oeis: A269882