A300773 Number of nX5 0..1 arrays with every element equal to 2, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

0, 9, 32, 179, 1536, 10374, 78932, 592064, 4449947, 33577057, 252998551, 1907641285, 14383151007, 108443795304, 817656870230, 6165008746020, 46483483392723, 350480396736512, 2642584867743746, 19924815133356634

Offset

1,2

Comments

Column 5 of A300776.

Links

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

Example

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

Crossrefs

Cf. A300776.

Sequence in context: A231999 A297298 A229444 * A317279 A196016 A183426

Adjacent sequences: A300770 A300771 A300772 * A300774 A300775 A300776

Keyword

nonn

Author

R. H. Hardin, Mar 12 2018

Status

approved