A302812 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
32, 2048, 36456, 773520, 15904814, 327603711, 6769884156, 139698154211, 2883341313830, 59516238963785, 1228442020230904, 25355878798281362, 523363128022737558, 10802567596406245283, 222972375306077513591
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0 ..0..1..1..0..1. .0..0..1..1..0. .0..0..1..1..0. .0..1..1..0..1 ..1..0..0..0..1. .1..0..1..1..0. .0..1..0..1..0. .0..0..1..0..0 ..0..0..1..0..1. .0..0..0..1..0. .1..0..1..1..0. .1..1..0..1..1 ..1..0..1..0..1. .1..1..0..1..1. .0..1..1..1..0. .1..0..0..1..0 ..1..0..0..1..1. .1..0..1..0..0. .1..0..1..0..0. .1..0..1..0..0
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A302808.
Comments