A303239 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

1, 34, 60, 255, 1106, 5158, 23995, 108726, 506416, 2400455, 11206914, 52620426, 248789167, 1172758534, 5532271468, 26154017151, 123634836850, 584566350050, 2765874355363, 13089996381214, 61961733243948, 293379713085303

Offset

1,2

Comments

Column 5 of A303242.

Links

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

Example

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

Crossrefs

Cf. A303242.

Sequence in context: A119454 A259952 A259945 * A280931 A115159 A125192

Adjacent sequences: A303236 A303237 A303238 * A303240 A303241 A303242

Keyword

nonn

Author

R. H. Hardin, Apr 20 2018

Status

approved