A275035 Number of nX6 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-2) or (-2,0) and new values introduced in order 0..2.

16, 432, 1152, 8273, 57984, 421793, 3056856, 22207559, 160767947, 1166126087, 8461160013, 61425788827, 445787882372, 3235147655180, 23477974651336, 170398268043384, 1236726092295065, 8975919178977093, 65144744923024289

Offset

1,1

Comments

Column 6 of A275037.

Links

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

Example

Some solutions for n=4
..0..1..2..0..1..2. .0..1..0..2..0..2. .0..1..2..1..2..0. .0..1..0..2..1..0
..1..2..1..2..0..2. .0..2..1..2..1..0. .2..0..1..2..1..2. .0..2..1..0..2..1
..1..2..0..1..0..1. .1..0..1..0..2..1. .1..0..1..2..0..1. .1..0..2..1..0..2
..0..1..2..1..2..0. .2..1..2..1..0..2. .1..2..0..1..2..1. .2..1..2..1..0..2

Crossrefs

Cf. A275037.

Sequence in context: A220286 A322713 A359642 * A275140 A274731 A111921

Adjacent sequences: A275032 A275033 A275034 * A275036 A275037 A275038

Keyword

nonn

Author

R. H. Hardin, Jul 14 2016

Status

approved