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A300505 Number of nX7 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
21, 11, 34, 191, 546, 4067, 17412, 112660, 634311, 3789374, 21768434, 127922510, 740390307, 4332789535, 25223205362, 147301185909, 859118123084, 5015850403762, 29268855094463, 170854627899949, 997148101828012 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A300506.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A300506.

Sequence in context: A033341 A252629 A213217 * A086981 A114011 A300943

Adjacent sequences:  A300502 A300503 A300504 * A300506 A300507 A300508

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 07 2018

STATUS

approved

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Last modified October 20 22:44 EDT 2019. Contains 328291 sequences. (Running on oeis4.)