A298844 Number of nX6 0..1 arrays with every element equal to 1, 2, 3, 6 or 8 king-move adjacent elements, with upper left element zero.

5, 573, 1274, 4648, 18191, 74685, 290474, 1134326, 4476521, 17504192, 68460956, 268946027, 1056908182, 4152467108, 16322047853, 64182331628, 252466069300, 993456216706, 3910523487359, 15397203073949, 60640330684857

Offset

1,1

Comments

Column 6 of A298846.

Links

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

Example

Some solutions for n=6
..0..1..1..0..0..0. .0..0..0..1..0..1. .0..1..0..1..0..1. .0..0..1..1..1..0
..1..0..1..1..1..0. .0..1..1..1..1..0. .1..0..0..0..1..0. .0..1..0..1..0..1
..1..1..1..1..1..0. .0..1..1..1..1..1. .0..0..0..0..0..0. .1..0..1..1..1..0
..1..0..1..1..1..1. .1..1..1..1..1..0. .1..0..0..0..1..0. .1..1..1..1..1..1
..0..1..0..1..0..1. .0..1..1..1..1..0. .0..1..0..1..0..1. .1..0..1..1..1..0
..0..0..1..1..1..0. .1..0..1..0..0..0. .1..0..0..0..1..1. .0..1..0..1..0..1

Crossrefs

Cf. A298846.

Sequence in context: A153404 A297821 A297991 * A298651 A299605 A185555

Adjacent sequences: A298841 A298842 A298843 * A298845 A298846 A298847

Keyword

nonn

Author

R. H. Hardin, Jan 27 2018

Status

approved