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A297761 Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 2, 3 or 4 neighboring 1s. 1
1, 733, 24801, 759243, 45618455, 2301783905, 108229776807, 5394743533114, 267870723932943, 13164280362488109, 649645311987327236, 32083173143952274627, 1582748891993544903545, 78096927219843019316942 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A297762.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A297762.

Sequence in context: A143726 A180919 A166607 * A220625 A260035 A033529

Adjacent sequences:  A297758 A297759 A297760 * A297762 A297763 A297764

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 05 2018

STATUS

approved

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Last modified May 24 06:53 EDT 2019. Contains 323529 sequences. (Running on oeis4.)