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A283639 Number of 6Xn 0..1 arrays with no 1 equal to more than one of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly two elements. 1
0, 606, 28828, 856710, 20051838, 490925804, 10666178322, 218881780434, 4439994180178, 86144471693502, 1647236588215940, 30886611480481804, 570240744935345282, 10403840277141487378, 187674700355041651540 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A283634.

LINKS

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

R. H. Hardin, Empirical recurrence of order 96

FORMULA

Empirical recurrence of order 96 (see link above)

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

CROSSREFS

Cf. A283634.

Sequence in context: A249524 A064250 A186818 * A332160 A131215 A096525

Adjacent sequences:  A283636 A283637 A283638 * A283640 A283641 A283642

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 12 2017

STATUS

approved

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Last modified November 29 18:41 EST 2021. Contains 349416 sequences. (Running on oeis4.)