Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302727
Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =98a(2) =363a(3) =1723a(4) =16265a(5) =89121a(6) =532511a(7) =4281120a(8) =26823700a(9) =176193198a(10) =1287161045a(11) =8543705276a(12) =58177418523a(13) =410055506135
External references
- oeis: A302727