A303454 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
32, 2048, 90112, 4129588, 189848373, 8727953509, 401405461699, 18461936404456, 849140799884830, 39055765228960644, 1796351602106938846, 82622397275547501377, 3800181265180961967638, 174787695136683295423742
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..1..0..1..0. .0..0..1..1..0..1. .0..0..0..0..1..0. .0..0..1..1..0..1 ..0..0..1..1..0..1. .0..0..0..0..1..0. .0..0..1..1..0..0. .0..0..0..0..1..0 ..0..0..1..1..0..0. .0..0..1..1..0..1. .0..0..1..1..0..0. .0..0..1..1..1..0 ..0..0..0..1..1..0. .0..0..1..0..1..1. .0..0..0..1..1..1. .0..0..1..1..0..0 ..0..0..1..1..0..0. .0..0..1..0..0..0. .0..0..1..0..0..1. .0..0..1..1..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A303456.
Comments