Number of nX5 0..2 arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two not more than once.
A268806
Number of nX5 0..2 arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =144a(1) =772a(2) =4158a(3) =28452a(4) =195384a(5) =1316226a(6) =8734264a(7) =57302798a(8) =372342650a(9) =2400532536a(10) =15373692036a(11) =97900054556a(12) =620374078660
External references
- oeis: A268806