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A293096 Number of nX4 0..1 arrays with the number of 1s horizontally, diagonally or antidiagonally adjacent to some 0 two less than the number of 0s adjacent to some 1. 1
0, 42, 567, 8088, 115870, 1710994, 25504769, 383909610, 5821195059, 88774881168, 1360012227225, 20913114635864, 322580968736023, 4988786216140076, 77325995176393118, 1200887079044838246, 18681923365562958635 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A293100.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..162

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A293100.

Sequence in context: A248448 A248449 A245874 * A279888 A104901 A091962

Adjacent sequences:  A293093 A293094 A293095 * A293097 A293098 A293099

KEYWORD

nonn

AUTHOR

R. H. Hardin, Sep 30 2017

STATUS

approved

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Last modified February 23 09:58 EST 2018. Contains 299536 sequences. (Running on oeis4.)