Number of n X 3 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
A269030
Number of n X 3 0..2 arrays with some element plus some horizontally, diagonally or antidiagonally adjacent neighbor totalling two exactly once.
Terms
- a(0) =12a(1) =48a(2) =348a(3) =2136a(4) =12228a(5) =67104a(6) =357756a(7) =1867560a(8) =9593844a(9) =48665904a(10) =244357740a(11) =1216672824a(12) =6015296484a(13) =29561944128a(14) =144531868764a(15) =703461546312
External references
- oeis: A269030