A297719 - OEIS

A297719

Number of nX7 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 2 or 4 neighboring 1s.

37, 2651, 68919, 2699832, 107787351, 4021047904, 154327332017, 5920531350715, 226188909640209, 8657932603026022, 331360189636829166, 12678860316903190032, 485194134262201742340, 18567112995250259829761

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OFFSET

1,1

COMMENTS

Column 7 of A297720.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Cf. A297720.

Sequence in context: A099807 A193123 A295846 * A296738 A296385 A296642

Adjacent sequences: A297716 A297717 A297718 * A297720 A297721 A297722

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 04 2018

STATUS

approved