A301846 Number of 6Xn 0..1 arrays with every element equal to 0, 1 or 2 horizontally or antidiagonally adjacent elements, with upper left element zero.

32, 2048, 23909, 414385, 6196305, 97439921, 1518341751, 23681717605, 370162554361, 5783766875077, 90425278777100, 1414012375653788, 22113880913447546, 345860482462563671, 5409344555270493414

Offset

1,1

Comments

Row 6 of A301841.

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..1. .0..0..0..0..0. .0..0..0..0..1
..1..1..1..0..1. .1..1..0..0..0. .1..1..1..1..0. .1..1..0..0..1
..0..1..1..0..1. .0..1..1..1..1. .0..0..1..0..1. .0..1..0..0..1
..0..1..0..0..1. .0..0..0..1..0. .0..1..0..0..1. .0..1..0..1..1
..0..1..0..1..0. .1..1..0..1..0. .0..1..0..1..0. .1..1..0..1..1
..1..0..1..1..1. .0..0..1..0..1. .0..1..0..1..1. .1..0..0..1..0

Crossrefs

Cf. A301841.

Sequence in context: A304123 A291826 A302270 * A302969 A302073 A302812

Adjacent sequences: A301843 A301844 A301845 * A301847 A301848 A301849

Keyword

nonn

Author

R. H. Hardin, Mar 27 2018

Status

approved