Number of n X 4 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302318
Number of n X 4 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =52a(2) =177a(3) =953a(4) =4525a(5) =19734a(6) =96956a(7) =458537a(8) =2098489a(9) =10026756a(10) =47317385a(11) =220419651a(12) =1043133155a(13) =4916777772a(14) =23056069587a(15) =108747082222a(16) =512264149774
External references
- oeis: A302318