A278092 Number of nX6 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.

0, 76, 1758, 61123, 2066549, 70793904, 2422349439, 82874815951, 2835664463158, 97019475542749, 3319494247111980, 113574742220392231, 3885907205045957510, 132954445247657663120, 4548972877595971502424, 155640932005103851366049

Offset

1,2

Comments

Column 6 of A278094.

Links

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

Example

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

Crossrefs

Cf. A278094.

Sequence in context: A060190 A156399 A232830 * A153177 A166191 A188400

Adjacent sequences: A278089 A278090 A278091 * A278093 A278094 A278095

Keyword

nonn

Author

R. H. Hardin, Nov 11 2016

Status

approved