A298380 Number of nX6 0..1 arrays with every element equal to 0, 2, 3, 5 or 6 king-move adjacent elements, with upper left element zero.

1, 65, 87, 504, 3271, 17749, 94292, 570906, 3475015, 19883608, 118823013, 713189236, 4231056637, 25230369597, 150909831526, 901408756376, 5382600739880, 32179607924271, 192375809257049, 1149796338265916

Offset

1,2

Comments

Column 6 of A298382.

Links

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

Example

Some solutions for n=7
..0..0..0..1..1..1. .0..0..0..1..1..0. .0..1..1..1..1..1. .0..1..0..0..1..0
..1..0..1..0..1..0. .0..1..1..0..1..1. .1..1..0..0..0..1. .0..0..0..1..1..1
..1..1..1..0..1..1. .1..0..0..1..1..0. .1..0..1..1..0..0. .0..1..1..1..1..0
..1..0..1..0..1..0. .0..1..1..1..1..1. .1..0..0..1..1..1. .1..1..0..1..0..0
..0..0..1..0..0..0. .0..1..0..1..1..0. .1..1..0..1..1..1. .0..0..0..1..1..0
..1..0..1..0..1..0. .0..0..0..1..0..0. .0..0..1..1..0..0. .0..0..1..1..1..1
..1..1..0..1..1..1. .1..0..1..1..1..0. .1..0..1..1..0..0. .0..0..1..0..1..0

Crossrefs

Cf. A298382.

Sequence in context: A322781 A020273 A034071 * A299247 A015788 A072053

Adjacent sequences: A298377 A298378 A298379 * A298381 A298382 A298383

Keyword

nonn

Author

R. H. Hardin, Jan 18 2018

Status

approved