A302320 Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 4 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.

32, 360, 1528, 14022, 104932, 708572, 5542827, 41843808, 305929316, 2314491745, 17440443844, 130333059573, 980106473079, 7374359116006, 55398416906338, 416423087231831, 3131657192036482, 23549977524019022, 177066204746039879

Offset

1,1

Comments

Column 6 of A302322.

Links

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

Example

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

Crossrefs

Cf. A302322.

Sequence in context: A006763 A158074 A200531 * A303014 A260359 A105250

Adjacent sequences: A302317 A302318 A302319 * A302321 A302322 A302323

Keyword

nonn

Author

R. H. Hardin, Apr 05 2018

Status

approved