A278155 Number of nX6 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.

0, 254, 11675, 571214, 28772962, 1459438050, 73654449669, 3717851037151, 187699707259842, 9476189368415446, 478407914745643442, 24152577356822109201, 1219351305393469653908, 61559372518202872739319

Offset

1,2

Comments

Column 6 of A278157.

Links

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

Example

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

Crossrefs

Cf. A278157.

Sequence in context: A196738 A195859 A250566 * A251860 A145715 A145587

Adjacent sequences: A278152 A278153 A278154 * A278156 A278157 A278158

Keyword

nonn

Author

R. H. Hardin, Nov 13 2016

Status

approved