A297699 Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0, 2 or 4 neighboring 1s.

64, 299, 7526, 61054, 1070635, 11111767, 165522511, 1927501851, 26604800210, 327032564064, 4354757342684, 54907563964508, 718868376106746, 9172788367453973, 119137256617569975, 1528743271057112564

Offset

1,1

Comments

Row 6 of A297694.

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=4
..0..0..0..0. .0..0..0..1. .0..0..1..1. .0..0..0..0. .0..0..0..0
..0..1..1..0. .0..0..0..0. .1..0..1..1. .1..0..0..0. .0..0..0..0
..0..0..1..1. .1..0..0..0. .1..0..0..0. .0..0..0..0. .0..0..0..1
..0..1..0..1. .1..0..1..0. .1..0..1..0. .1..1..1..0. .0..1..0..0
..0..0..1..0. .1..0..1..0. .1..0..0..0. .0..1..0..0. .0..0..0..1
..1..0..0..0. .1..0..0..0. .0..0..1..0. .0..1..0..0. .1..0..0..1

Crossrefs

Cf. A297694.

Sequence in context: A017258 A366817 A297462 * A297888 A298493 A298293

Adjacent sequences: A297696 A297697 A297698 * A297700 A297701 A297702

Keyword

nonn

Author

R. H. Hardin, Jan 03 2018

Status

approved