A278174 Number of nX5 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) (1,-1) or (1,0), with upper left element zero.

0, 43, 737, 17396, 396024, 9120939, 209105063, 4797179760, 110034231906, 2523955236624, 57893739618179, 1327951316712237, 30460184207856087, 698687420488831794, 16026301711146587408, 367606943763824641516

Offset

1,2

Comments

Column 5 of A278177.

Links

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

Example

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

Crossrefs

Cf. A278177.

Sequence in context: A229689 A146979 A337904 * A332910 A157722 A010959

Adjacent sequences: A278171 A278172 A278173 * A278175 A278176 A278177

Keyword

nonn

Author

R. H. Hardin, Nov 13 2016

Status

approved