Number of nX7 0..1 arrays with every element equal to 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
A300645
Number of nX7 0..1 arrays with every element equal to 2, 3, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =41a(2) =340a(3) =9738a(4) =268615a(5) =7455411a(6) =209156119a(7) =5850560104a(8) =164070075524
External references
- oeis: A300645