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A202734 Number of nX7 nonnegative integer arrays each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it) and the lower right element equal to min(n,7)-1 1
1, 32, 2062, 184848, 12219684, 182593546, 51871384, 4025241096124, 36422682546205910, 131056226079716655758, 280757551199231043765836, 441077319990976298095629110, 574350179584926874304293083870 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 7 of A202735

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..87

EXAMPLE

Some solutions for n=4

..0..0..0..0..0..0..0....0..0..0..0..0..0..0....0..0..0..0..0..0..0

..0..0..1..1..0..1..1....0..0..0..1..0..1..1....0..1..0..0..1..0..1

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

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

CROSSREFS

Sequence in context: A300180 A277426 A159364 * A268054 A268077 A202547

Adjacent sequences:  A202731 A202732 A202733 * A202735 A202736 A202737

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 23 2011

STATUS

approved

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Last modified June 27 11:08 EDT 2022. Contains 354896 sequences. (Running on oeis4.)