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A296404 Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 2 or 3 neighboring 1s. 1
1, 289, 4560, 110554, 3939121, 107541673, 3068113721, 90097748288, 2600708602697, 75199003513063, 2177790921375079, 63025869220333603, 1824132928895167966, 52797260271592457318, 1528116017845740163428 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A296405.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A296405.

Sequence in context: A112077 A152934 A156575 * A156161 A114762 A226747

Adjacent sequences:  A296401 A296402 A296403 * A296405 A296406 A296407

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 11 2017

STATUS

approved

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Last modified August 18 20:02 EDT 2019. Contains 326109 sequences. (Running on oeis4.)