A275089 Number of nX7 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.

48, 2592, 17184, 232156, 2934756, 38872396, 512150588, 6767371752, 89090043684, 1174911360788, 15503814279976, 204476407498760, 2696824987632772, 35568778483055352, 469145522114492964, 6187939649650112040

Offset

1,1

Comments

Column 7 of A275090.

Links

R. H. Hardin, Table of n, a(n) for n = 1..133

Example

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

Crossrefs

Cf. A275090.

Sequence in context: A079240 A360904 A275564 * A235903 A208442 A203488

Adjacent sequences: A275086 A275087 A275088 * A275090 A275091 A275092

Keyword

nonn

Author

R. H. Hardin, Jul 16 2016

Status

approved