A298052 Number of nX5 0..1 arrays with every element equal to 1, 2, 4 or 6 king-move adjacent elements, with upper left element zero.

3, 23, 23, 73, 121, 231, 422, 865, 1729, 3286, 6319, 12563, 24164, 46151, 91180, 179529, 348543, 679612, 1324925, 2580453, 5044253, 9857924, 19226398, 37521143, 73217267, 142924098, 278999274, 544730946, 1063235208, 2075512334, 4051405413

Offset

1,1

Comments

Column 5 of A298055.

Links

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

Example

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

Crossrefs

Cf. A298055.

Sequence in context: A122902 A297855 A298090 * A298885 A298657 A299609

Adjacent sequences: A298049 A298050 A298051 * A298053 A298054 A298055

Keyword

nonn

Author

R. H. Hardin, Jan 11 2018

Status

approved