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A206649 Number of nX7 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 1
224, 301056, 180716227, 134185561617, 94026798615720, 66923081500826797, 47431914936748228227, 33655725191129741926976, 23873388521297916754784915, 16935776648670564255296973109, 12013968003497755426965647537206 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A206650

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..43

EXAMPLE

Some solutions for n=4

..0..1..1..0..0..1..2....0..1..0..2..1..2..2....0..0..1..1..2..0..1

..2..0..0..1..2..0..2....2..2..1..1..2..1..0....2..0..2..2..0..2..2

..2..0..1..0..0..1..0....0..0..1..1..2..1..0....0..1..2..1..2..1..2

..0..1..2..0..0..2..0....2..1..2..2..1..2..1....1..0..0..1..1..2..0

CROSSREFS

Sequence in context: A280672 A204977 A204704 * A340501 A265432 A247885

Adjacent sequences:  A206646 A206647 A206648 * A206650 A206651 A206652

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 11 2012

STATUS

approved

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Last modified October 26 14:28 EDT 2021. Contains 348267 sequences. (Running on oeis4.)