Number of n X 3 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303416
Number of n X 3 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =4a(1) =32a(2) =252a(3) =1988a(4) =15684a(5) =123732a(6) =976132a(7) =7700788a(8) =60752164a(9) =479278932a(10) =3781071812a(11) =29829193588a(12) =235325017444
External references
- oeis: A303416