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A302746 Number of 7Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 1
64, 8192, 630604, 50347423, 4104946296, 336148647504, 27552364197684, 2259775666820199, 185346624306819175, 15203212791707362697, 1247058011926331112543, 102291835163573811251710 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A302741.

LINKS

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

EXAMPLE

Some solutions for n=5

..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0

..0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0. .0..0..0..0..0

..1..1..1..1..1. .1..1..1..1..1. .1..1..1..1..1. .1..1..1..1..1

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

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

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

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

CROSSREFS

Cf. A302741.

Sequence in context: A302740 A299660 A300214 * A300803 A303455 A303461

Adjacent sequences:  A302743 A302744 A302745 * A302747 A302748 A302749

KEYWORD

nonn

AUTHOR

R. H. Hardin, Apr 12 2018

STATUS

approved

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Last modified April 14 00:07 EDT 2021. Contains 342941 sequences. (Running on oeis4.)