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A289650 Number of nX7 0..1 arrays with the number of 1s horizontally, antidiagonally or vertically adjacent to some 0 two less than the number of 0s adjacent to some 1. 1
3, 2421, 183390, 25760875, 2439241607, 332113863074, 35072966294346, 4615203834449304, 519140871714574338, 66784349259505575111, 7809000921229551589905, 991318340748862385457430 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A289651.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..31

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A289651.

Sequence in context: A286715 A081176 A255869 * A171361 A203687 A034316

Adjacent sequences:  A289647 A289648 A289649 * A289651 A289652 A289653

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jul 09 2017

STATUS

approved

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Last modified February 18 20:25 EST 2019. Contains 320262 sequences. (Running on oeis4.)