A276246 Number of nX6 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-2) and new values introduced in order 0..2.

24, 648, 2837, 26325, 234431, 2069454, 18671229, 167951009, 1509288801, 13609728840, 122702955310, 1106289221616, 9981742768716, 90071571350633, 812807513045538, 7336233541686365, 66219228884217858, 597727899610563029

Offset

1,1

Comments

Column 6 of A276248.

Links

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

Example

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

Crossrefs

Cf. A276248.

Sequence in context: A118051 A208441 A231449 * A274957 A288816 A268473

Adjacent sequences: A276243 A276244 A276245 * A276247 A276248 A276249

Keyword

nonn

Author

R. H. Hardin, Aug 25 2016

Status

approved