A281032 Number of nX6 0..1 arrays with no element equal to more than three of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.

0, 252, 8886, 38972, 184290, 770788, 3042556, 11471132, 41949794, 150344672, 531019564, 1853716800, 6408859134, 21978465412, 74865327034, 253567733120, 854665596576, 2868578317992, 9592422240950, 31971551621052, 106249551692574

Offset

1,2

Comments

Column 6 of A281034.

Links

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

Example

Some solutions for n=4
..0..0..1..1..0..0. .0..0..0..1..0..1. .0..0..0..0..0..1. .0..0..0..0..0..0
..0..1..0..0..1..0. .0..1..1..1..0..0. .0..1..1..1..1..0. .0..1..1..1..1..0
..0..1..1..0..1..0. .1..0..0..0..1..1. .1..0..0..0..0..0. .1..0..1..0..0..1
..0..0..0..1..1..1. .0..1..1..0..0..1. .0..1..1..0..1..1. .1..0..1..1..1..1

Crossrefs

Cf. A281034.

Sequence in context: A250376 A329755 A109924 * A047831 A076013 A180886

Adjacent sequences: A281029 A281030 A281031 * A281033 A281034 A281035

Keyword

nonn

Author

R. H. Hardin, Jan 13 2017

Status

approved