A281934 Number of nX6 0..1 arrays with no element equal to more than four of its king-move neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.

0, 166, 31410, 1488168, 60084175, 2098456730, 66997966477, 2020027689730, 58434162686355, 1637903530180186, 44791173913543967, 1200802011978402848, 31669820213104609476, 823877680347705496354, 21184217308519554802417

Offset

1,2

Comments

Column 6 of A281936.

Links

R. H. Hardin, Table of n, a(n) for n = 1..108

Example

Some solutions for n=3
..0..1..0..0..0..0. .0..0..1..1..1..0. .0..0..1..0..0..1. .0..0..0..0..0..1
..0..1..0..0..0..1. .0..1..1..0..0..0. .1..0..0..1..0..0. .0..1..0..1..1..1
..0..1..0..1..1..1. .0..1..1..1..0..0. .0..0..0..1..1..0. .1..1..0..0..1..1

Crossrefs

Cf. A281936.

Sequence in context: A011815 A188413 A144929 * A212325 A163398 A273548

Adjacent sequences: A281931 A281932 A281933 * A281935 A281936 A281937

Keyword

nonn

Author

R. H. Hardin, Feb 02 2017

Status

approved