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A300379 Number of nX7 0..1 arrays with every element equal to 0, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
1, 74, 131, 692, 6577, 53367, 481311, 4070089, 36505624, 319929622, 2837476138, 25246596055, 223898861023, 1988295398102, 17653104464628, 156742758122408, 1391761200734035, 12357651656612721, 109729025922860987 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A300380.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A300380.

Sequence in context: A118221 A333100 A270340 * A300681 A309143 A044325

Adjacent sequences:  A300376 A300377 A300378 * A300380 A300381 A300382

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 04 2018

STATUS

approved

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Last modified January 16 09:13 EST 2021. Contains 340204 sequences. (Running on oeis4.)