Number of 4Xn 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303626
Number of 4Xn 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =8a(1) =3a(2) =148a(3) =325a(4) =3591a(5) =19467a(6) =160807a(7) =1173612a(8) =9421103a(9) =75073653a(10) =610163560a(11) =4982200456a(12) =40884018586a(13) =336380001790
External references
- oeis: A303626