A302072 Number of 5Xn 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero.

16, 512, 5296, 67070, 807601, 9825815, 119508742, 1452315793, 17661727848, 214818317017, 2613377675631, 31794933035645, 386831554680657, 4706379266471703, 57260098009925842, 696654234944188198

Offset

1,1

Comments

Row 5 of A302069.

Links

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

Example

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

Crossrefs

Cf. A302069.

Sequence in context: A301845 A302269 A302968 * A302811 A303472 A208712

Adjacent sequences: A302069 A302070 A302071 * A302073 A302074 A302075

Keyword

nonn

Author

R. H. Hardin, Mar 31 2018

Status

approved