Number of n X 2 0..3 arrays with some element plus some horizontally, antidiagonally or vertically adjacent neighbor totalling three exactly once.
A269146
Number of n X 2 0..3 arrays with some element plus some horizontally, antidiagonally or vertically adjacent neighbor totalling three exactly once.
Terms
- a(0) =4a(1) =80a(2) =768a(3) =6224a(4) =46464a(5) =330192a(6) =2270592a(7) =15251152a(8) =100647168a(9) =655139152a(10) =4217820672a(11) =26911075152a(12) =170416738944
External references
- oeis: A269146