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A296642 Number of nX7 0..1 arrays with each 1 horizontally, vertically or antidiagonally adjacent to 1, 2 or 4 neighboring 1s. 1
37, 2728, 89613, 3713779, 157255466, 6468185511, 267838310277, 11100574753607, 459672982178410, 19037726114800043, 788497459189867140, 32656946891818303362, 1352543183239264781440, 56018002075733378064056 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A296643.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A296643.

Sequence in context: A297719 A296738 A296385 * A295039 A295530 A174750

Adjacent sequences:  A296639 A296640 A296641 * A296643 A296644 A296645

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 17 2017

STATUS

approved

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Last modified August 4 19:03 EDT 2021. Contains 346455 sequences. (Running on oeis4.)