A301528 Number of nX5 0..1 arrays with every element equal to 0, 2, 3, 4, 5 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

1, 40, 391, 5472, 74479, 1050609, 14890200, 212169356, 3027488635, 43225570310, 617301285321, 8816498864084, 125925016069260, 1798601809099701, 25689806662527687, 366933896387193986, 5241013701042623890

Offset

1,2

Comments

Column 5 of A301531.

Links

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

Example

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

Crossrefs

Cf. A301531.

Sequence in context: A008355 A229716 A221820 * A253132 A293969 A168192

Adjacent sequences: A301525 A301526 A301527 * A301529 A301530 A301531

Keyword

nonn

Author

R. H. Hardin, Mar 23 2018

Status

approved