A206648 Number of nX6 0..2 arrays with no occurrence of three equal elements in a row horizontally or vertically, and new values 0..2 introduced in row major order

82, 40344, 9937823, 2937839117, 826407481102, 235596375117548, 66923081500826797, 19028556027562892700, 5409059480469744048410, 1537688707897783125342152, 437126162327975923315915812

Offset

1,1

Comments

Column 6 of A206650

Links

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

Example

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

Crossrefs

Sequence in context: A176024 A204976 A204703 * A120269 A291586 A015077

Adjacent sequences: A206645 A206646 A206647 * A206649 A206650 A206651

Keyword

nonn

Author

R. H. Hardin Feb 11 2012

Status

approved