A300809 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.
32, 1490, 34836, 872495, 22066384, 559634028, 14189038853, 359766695966, 9121562946307, 231272831721241, 5863793161067426, 148673270791278610, 3769528495204343311, 95574315400763857215, 2423234009392860653804
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..0..0..1..0. .0..0..0..0..1..1. .0..0..0..1..0..0. .0..0..0..0..1..0 ..0..1..1..1..1..0. .0..1..1..0..0..0. .0..1..1..0..1..0. .0..1..0..1..1..0 ..0..0..0..0..1..0. .0..0..1..1..1..1. .0..0..1..0..1..0. .0..1..0..1..0..1 ..0..1..0..1..0..0. .0..1..0..0..1..0. .0..1..1..0..1..1. .0..0..0..1..0..0 ..0..1..0..1..1..1. .0..1..1..0..1..1. .0..1..0..0..1..1. .0..0..1..0..1..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A300811.
Comments