Number of nX7 0..2 arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two not more than once.
A268808
Number of nX7 0..2 arrays with some element plus some horizontally, vertically or antidiagonally adjacent neighbor totalling two not more than once.
Terms
- a(0) =768a(1) =4914a(2) =48460a(3) =640926a(4) =8734264a(5) =115671422a(6) =1508087180a(7) =19390335102a(8) =246666802206
External references
- oeis: A268808