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A283382 Number of nX4 0..1 arrays with no 1 equal to more than two of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements. 1
0, 19, 532, 8087, 116624, 1592250, 20788531, 264040297, 3282238215, 40118887549, 483764807520, 5768246109027, 68131353675622, 798246637065836, 9287150583313283, 107389081231009891, 1235032262230121990 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 4 of A283386.

LINKS

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

R. H. Hardin, Empirical recurrence of order 57

FORMULA

Empirical recurrence of order 57 (see link above)

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A283386.

Sequence in context: A158583 A009081 A057644 * A196512 A027406 A053116

Adjacent sequences:  A283379 A283380 A283381 * A283383 A283384 A283385

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 06 2017

STATUS

approved

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Last modified December 6 20:22 EST 2021. Contains 349567 sequences. (Running on oeis4.)