Number of n X 3 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303097
Number of n X 3 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =15a(2) =77a(3) =486a(4) =2869a(5) =17229a(6) =102952a(7) =616065a(8) =3685099a(9) =22045482a(10) =131879323a(11) =788928513a(12) =4719516650a(13) =28233043741a(14) =168895389127
External references
- oeis: A303097