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A285753 Number of 4 X n 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
0, 52, 550, 8544, 119506, 1729212, 25450414, 379892924, 5724356600, 86870686676, 1325147534394, 20298649626624, 312012262489322, 4809932665481580, 74334215199171600, 1151283153187656576, 17865166558629037394 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 4 of A285750.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..130

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A285750.

Sequence in context: A200549 A000527 A294055 * A100413 A221272 A254137

Adjacent sequences:  A285750 A285751 A285752 * A285754 A285755 A285756

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 25 2017

STATUS

approved

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Last modified May 23 00:47 EDT 2022. Contains 353959 sequences. (Running on oeis4.)