Number of n X 4 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
A303080
Number of n X 4 0..1 arrays with every element equal to 0, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =20a(2) =29a(3) =90a(4) =304a(5) =1054a(6) =4182a(7) =17369a(8) =75377a(9) =335199a(10) =1511973a(11) =6877743a(12) =31436925a(13) =144097153a(14) =661586920a(15) =3040460522a(16) =13981091806a(17) =64311876578a(18) =295889956660
External references
- oeis: A303080