Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303409
Number of nX7 0..1 arrays with every element equal to 1, 2, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =98a(2) =730a(3) =6322a(4) =160247a(5) =1716995a(6) =24386918a(7) =497878411a(8) =6748940959a(9) =106242067376
External references
- oeis: A303409