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A302527 Number of nX7 0..1 arrays with every element equal to 1, 2, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
8, 98, 730, 5942, 128242, 1275348, 16130212, 303355178, 3654880956, 51530586242, 829503866128, 11159474949120, 160761590077504, 2423517947094100, 34130627941733812, 494058647385825910, 7263463498716354406 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A302528.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A302528.

Sequence in context: A183334 A196327 A116130 * A303409 A264168 A116287

Adjacent sequences:  A302524 A302525 A302526 * A302528 A302529 A302530

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 09 2018

STATUS

approved

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Last modified July 6 04:31 EDT 2022. Contains 355108 sequences. (Running on oeis4.)