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A283949 Number of nX7 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element. 1
0, 1926, 575456, 64614384, 6763514843, 667015216686, 62944601744067, 5782000278310300, 520411514987541560, 46113717734650843082, 4036254767838742279228, 349783657626468531519474 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A283950.

LINKS

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

EXAMPLE

Some solutions for n=2

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

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

CROSSREFS

Cf. A283950.

Sequence in context: A255867 A326018 A202051 * A133301 A258841 A099482

Adjacent sequences:  A283946 A283947 A283948 * A283950 A283951 A283952

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 18 2017

STATUS

approved

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Last modified January 20 10:55 EST 2022. Contains 350472 sequences. (Running on oeis4.)