A295211 - OEIS

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A295211

Number of nX6 0..1 arrays with each 1 horizontally or vertically adjacent to 2 or 3 1s.

1, 31, 345, 4938, 85215, 1245294, 18444470, 278238087, 4170628296, 62588525694, 940255638767, 14117945596996, 211965773459470, 3182555837979301, 47783850148231569, 717445698125438780, 10772054909227440585

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

Column 6 of A295213.

LINKS

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

EXAMPLE

Some solutions for n=5

..1..1..1..1..1..1. .1..1..1..1..1..1. .0..1..1..1..0..0. .1..1..0..0..0..0

..1..1..1..1..0..1. .1..1..0..0..1..1. .0..1..0..1..1..0. .1..1..0..0..1..1

..1..0..0..1..1..1. .1..1..0..1..1..1. .1..1..1..1..1..1. .0..0..1..1..1..1