A301447 Number of nX5 0..1 arrays with every element equal to 0, 1, 2, 3, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

16, 401, 5930, 91370, 1423344, 22207589, 346263718, 5399605493, 84198470831, 1312961721912, 20473797385819, 319260349892947, 4978419327889986, 77631501971204037, 1210554922385559732, 18876914499872038074

Offset

1,1

Comments

Column 5 of A301450.

Links

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

Example

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

Crossrefs

Cf. A301450.

Sequence in context: A300469 A326102 A300808 * A374881 A202733 A261833

Adjacent sequences: A301444 A301445 A301446 * A301448 A301449 A301450

Keyword

nonn

Author

R. H. Hardin, Mar 21 2018

Status

approved