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A183620 1/120 the number of (n+1)X8 0..4 arrays with every 2X2 subblock containing four distinct values 0
46656, 4230144, 383674672, 35321033072, 3272704747696, 304621701959456, 28435992292698928, 2659579711027048176 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A183622

LINKS

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

EXAMPLE

Some solutions with the first square being 0123 for 3X8

..0..1..0..1..0..3..2..3....0..1..0..1..0..2..3..2....0..1..0..1..0..4..1..4

..2..3..2..4..2..1..4..0....2..3..2..4..3..1..0..4....2..3..2..4..3..2..3..2

..0..4..0..3..0..3..2..1....1..4..0..1..2..4..2..3....4..1..0..1..0..1..4..1

CROSSREFS

Sequence in context: A223562 A016866 A016914 * A017058 A017142 A017238

Adjacent sequences:  A183617 A183618 A183619 * A183621 A183622 A183623

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 06 2011

STATUS

approved

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Last modified October 13 20:38 EDT 2019. Contains 327981 sequences. (Running on oeis4.)