A302812 Number of 6Xn 0..1 arrays with every element equal to 0, 1, 2, 3 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 2048, 36456, 773520, 15904814, 327603711, 6769884156, 139698154211, 2883341313830, 59516238963785, 1228442020230904, 25355878798281362, 523363128022737558, 10802567596406245283, 222972375306077513591

Offset

1,1

Comments

Row 6 of A302808.

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

Crossrefs

Cf. A302808.

Sequence in context: A301846 A302969 A302073 * A303473 A208713 A305521

Adjacent sequences: A302809 A302810 A302811 * A302813 A302814 A302815

Keyword

nonn

Author

R. H. Hardin, Apr 13 2018

Status

approved