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A202547 Number of nX6 nonnegative integer arrays each row and column an ascent sequence (interior element no greater than one plus up-steps preceding it) 1
1, 32, 2094, 219934, 31670778, 5534917394, 1078490778110, 222425177005132, 47166084815234578, 10132160238913275232, 2189244152545815718298, 474218997901396743953114, 102831073878890605814623386 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A202549

LINKS

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

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..0

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

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

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

CROSSREFS

Sequence in context: A202734 A268054 A268077 * A222830 A079202 A294607

Adjacent sequences:  A202544 A202545 A202546 * A202548 A202549 A202550

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 20 2011

STATUS

approved

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Last modified May 21 21:43 EDT 2022. Contains 353929 sequences. (Running on oeis4.)