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A303101 Number of nX7 0..1 arrays with every element equal to 1, 2, 3, 4 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
8, 2208, 128921, 8650205, 568099880, 37220475492, 2441756629583, 160164698180399, 10505922762123798, 689141410588573095, 45204400412352498100, 2965196935043545360686, 194503015320143538663000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A303102.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A303102.

Sequence in context: A017415 A046246 A302380 * A302952 A151580 A173175

Adjacent sequences:  A303098 A303099 A303100 * A303102 A303103 A303104

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 18 2018

STATUS

approved

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Last modified January 24 22:45 EST 2022. Contains 350565 sequences. (Running on oeis4.)