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A285745 Number of n X 3 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1. 1
1, 8, 105, 550, 5105, 30918, 265920, 1773432, 14632372, 103605826, 834224969, 6128787272, 48666035225, 365893476096, 2883831290602, 22005412864334, 172812531531152, 1331535174196624, 10442072847350585, 80985489140322402 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A285750.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A285750.

Sequence in context: A266044 A266040 A146346 * A119934 A247537 A302261

Adjacent sequences:  A285742 A285743 A285744 * A285746 A285747 A285748

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 25 2017

STATUS

approved

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Last modified October 27 15:21 EDT 2021. Contains 348287 sequences. (Running on oeis4.)