A303246 Number of 6Xn 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 10, 494, 160, 5158, 7823, 90728, 421983, 3251872, 23282610, 175055099, 1340813633, 10458371398, 80508035855, 634752883979, 4921023633814, 38687814219982, 301834276228660, 2365262885917076, 18505872453909054

Offset

1,1

Comments

Row 6 of A303242.

Links

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

Example

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

Crossrefs

Cf. A303242.

Sequence in context: A213656 A302216 A302464 * A302372 A303088 A302893

Adjacent sequences: A303243 A303244 A303245 * A303247 A303248 A303249

Keyword

nonn

Author

R. H. Hardin, Apr 20 2018

Status

approved