Number of 3Xn 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.
A303422
Number of 3Xn 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) =1985a(4) =15647a(5) =123337a(6) =972168a(7) =7662841a(8) =60400282a(9) =476088932a(10) =3752642337a(11) =29579189147a(12) =233149966025
External references
- oeis: A303422