Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302621
Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =32a(1) =169a(2) =146a(3) =497a(4) =2229a(5) =9015a(6) =36510a(7) =150072a(8) =606756a(9) =2468992a(10) =10053705a(11) =40857230a(12) =166236741a(13) =676221120a(14) =2750271178a(15) =11187615465a(16) =45506216823a(17) =185098331538a(18) =752909910881
External references
- oeis: A302621