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A297738 Number of 6Xn 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2 or 4 neighboring 1s. 1
1, 9, 385, 1443, 11171, 65215, 673171, 4414693, 36515720, 262644855, 2167783248, 16326721009, 130593495719, 1004457623070, 7977094417489, 62076354573565, 490287264598713, 3835365581310001, 30228295038249915, 237124926883181002 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 6 of A297733.

LINKS

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

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Cf. A297733.

Sequence in context: A157593 A157602 A124042 * A225988 A012191 A012078

Adjacent sequences:  A297735 A297736 A297737 * A297739 A297740 A297741

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 04 2018

STATUS

approved

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Last modified December 8 20:37 EST 2021. Contains 349596 sequences. (Running on oeis4.)