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A203489 Number of nX6 0..2 arrays with row sums equal and column sums unequal to adjacent columns 0
96, 20596, 3171708, 442135180, 61706303456, 8496020082856, 1172134178554204, 161068791865426940 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A203491

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Sequence in context: A299950 A269208 A295597 * A208794 A276099 A233161

Adjacent sequences:  A203486 A203487 A203488 * A203490 A203491 A203492

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 02 2012

STATUS

approved

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Last modified August 23 13:53 EDT 2019. Contains 326227 sequences. (Running on oeis4.)