A302969 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.
32, 2048, 24602, 395493, 5602382, 83644490, 1233435694, 18159869483, 268409524880, 3957450379702, 58402548130271, 861812274348049, 12715310968740330, 187629366615561495, 2768525577015049111
Offset: 1
Keywords
Examples
Some solutions for n=5 ..0..0..0..0..0. .0..0..0..0..1. .0..0..0..0..0. .0..0..0..0..0 ..0..0..1..1..1. .1..1..0..1..0. .1..1..0..1..1. .1..1..0..1..1 ..1..0..1..0..0. .0..1..0..1..1. .1..0..0..1..0. .0..1..1..1..0 ..1..0..1..1..0. .1..1..0..0..0. .0..1..1..0..1. .0..1..0..1..1 ..0..0..1..0..0. .1..0..1..1..1. .0..1..1..0..1. .1..1..0..1..1 ..1..1..0..0..1. .0..1..0..0..1. .0..0..0..1..0. .1..1..0..1..1
Links
- R. H. Hardin, Table of n, a(n) for n = 1..210
Crossrefs
Cf. A302965.
Comments