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A285145 Number of n X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 one less than the number of 0's adjacent to some 1. 1
0, 2, 113, 11574, 4551741, 7586120602, 52105131287528, 1469435682255774972, 168943399492409779855098, 78854409689567939731003347822, 148970519290227262688309540510302237 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A285152.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..12

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A285152.

Sequence in context: A209611 A042567 A142112 * A278925 A053976 A217088

Adjacent sequences:  A285142 A285143 A285144 * A285146 A285147 A285148

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 12 2017

STATUS

approved

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Last modified June 26 12:41 EDT 2022. Contains 354883 sequences. (Running on oeis4.)