A275095 Number of 7 X n 0..2 arrays with no element equal to any value at offset (0,-2) (-1,-2) or (-2,-1) and new values introduced in order 0..2.

365, 104976, 155904, 675600, 4706400, 48675088, 512150588, 5409118916, 58485063272, 627063902032, 6757273029432, 72848042422536, 785795946135408, 8476340619088292, 91452795188833412, 986763165449841128

Offset

1,1

Comments

Row 7 of A275090.

Links

R. H. Hardin, Table of n, a(n) for n = 1..73

Example

Some solutions for n=3
..0..1..1. .0..1..1. .0..1..1. .0..0..1. .0..0..1. .0..0..1. .0..0..1
..1..2..2. .0..1..2. .1..0..2. .0..1..1. .2..0..1. .1..1..2. .0..0..2
..1..2..0. .1..2..2. .2..2..0. .0..1..2. .2..2..1. .0..1..2. .0..2..2
..2..2..0. .1..1..0. .0..2..1. .1..1..2. .0..0..1. .1..2..2. .0..2..1
..2..2..1. .1..0..0. .2..1..1. .1..1..2. .2..1..1. .0..2..2. .2..1..1
..1..0..0. .2..0..0. .1..2..0. .1..0..0. .0..1..1. .2..0..1. .2..1..0
..1..0..0. .0..2..1. .1..1..2. .1..2..2. .1..0..2. .0..1..1. .1..0..0

Crossrefs

Cf. A275090.

Sequence in context: A275265 A233097 A223386 * A275351 A241376 A208566

Adjacent sequences: A275092 A275093 A275094 * A275096 A275097 A275098

Keyword

nonn

Author

R. H. Hardin, Jul 16 2016

Status

approved