A298165 Number of nX6 0..1 arrays with every element equal to 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero.

0, 5, 5, 11, 18, 62, 133, 749, 2248, 11243, 43303, 213698, 862571, 4209880, 18541760, 85912154, 391299596, 1813446809, 8242953615, 38135967993, 174709622116, 803464643771, 3690832801362, 16981747383158, 77971455891314

Offset

1,2

Comments

Column 6 of A298167.

Links

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

Example

Some solutions for n=8
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..0..1..1..1. .0..0..0..1..1..1
..0..0..1..1..0..0. .0..0..1..1..0..0. .0..0..1..0..1..1. .0..0..0..1..1..1
..1..1..1..0..1..1. .0..0..1..1..0..0. .1..1..1..0..0..1. .0..0..0..1..1..1
..1..1..0..0..1..1. .1..1..0..1..0..0. .1..1..0..0..1..1. .0..0..0..1..1..1
..0..0..1..1..0..0. .1..1..0..0..1..1. .0..0..1..1..0..1. .1..1..1..0..0..0
..0..0..0..1..0..0. .1..0..0..1..1..1. .0..0..1..0..0..1. .1..1..0..1..0..0
..1..1..0..0..1..1. .1..1..0..1..0..0. .1..1..0..0..1..1. .0..0..1..0..1..1
..1..1..1..1..1..1. .1..1..1..0..0..0. .1..1..1..1..1..1. .0..0..0..1..1..1

Crossrefs

Cf. A298167.

Sequence in context: A141244 A121849 A164930 * A301800 A214827 A298955

Adjacent sequences: A298162 A298163 A298164 * A298166 A298167 A298168

Keyword

nonn

Author

R. H. Hardin, Jan 14 2018

Status

approved