A300686 Number of nX5 0..1 arrays with every element equal to 1, 2, 3 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

3, 96, 1391, 18225, 240463, 3179333, 42006289, 554837022, 7328971275, 96809180326, 1278756595603, 16891220226973, 223117594938741, 2947179704159404, 38929553446409017, 514223861793513922

Offset

1,1

Comments

Column 5 of A300689.

Links

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

Example

Some solutions for n=5
..0..0..0..1..1. .0..0..0..1..0. .0..0..0..1..0. .0..0..0..0..1
..1..1..0..0..0. .1..1..0..1..0. .1..1..1..1..0. .0..1..0..1..0
..1..0..1..1..1. .1..1..0..1..1. .0..0..0..1..1. .1..0..1..1..0
..0..1..0..0..1. .0..1..0..0..1. .1..0..1..0..1. .1..1..0..1..0
..0..1..1..0..1. .0..1..0..0..1. .1..1..0..0..1. .1..0..0..0..0

Crossrefs

Cf. A300689.

Sequence in context: A264548 A094085 A300424 * A300609 A301351 A268012

Adjacent sequences: A300683 A300684 A300685 * A300687 A300688 A300689

Keyword

nonn

Author

R. H. Hardin, Mar 11 2018

Status

approved