Number of 3Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A302954
Number of 3Xn 0..1 arrays with every element equal to 1, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =0a(1) =11a(2) =86a(3) =519a(4) =3626a(5) =26167a(6) =185810a(7) =1317541a(8) =9353154a(9) =66404553a(10) =471405566a(11) =3346494089a(12) =23756835310a(13) =168650322345
External references
- oeis: A302954