A299178 Number of nX6 0..1 arrays with every element equal to 0, 1, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero.

32, 969, 1860, 7016, 30089, 123258, 488812, 1973932, 7998917, 32133289, 129295516, 521825491, 2103866573, 8477867045, 34181235225, 137822897266, 555658803759, 2240383895918, 9033674194617, 36426046739915, 146881842890670

Offset

1,1

Comments

Column 6 of A299180.

Links

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

Example

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

Crossrefs

Cf. A299180.

Sequence in context: A281342 A298285 A299357 * A299940 A274894 A275136

Adjacent sequences: A299175 A299176 A299177 * A299179 A299180 A299181

Keyword

nonn

Author

R. H. Hardin, Feb 04 2018

Status

approved