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A232776 Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing 0
118, 1176, 9607, 71172, 474271, 2888324, 16411386, 87759236, 445218879, 2163198554, 10117422745, 45757881000, 201068414833, 861138559305, 3604319480707, 14783116721340, 59536205151486 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A232778

LINKS

Table of n, a(n) for n=1..17.

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A261464 A250793 A334646 * A175876 A220715 A230917

Adjacent sequences:  A232773 A232774 A232775 * A232777 A232778 A232779

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 30 2013

STATUS

approved

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Last modified January 16 04:59 EST 2022. Contains 350374 sequences. (Running on oeis4.)