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A233361 Number of (n+1)X(2+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing 1
14, 46, 139, 364, 849, 1928, 4281, 9315, 19741, 40967, 84289, 172238, 349179, 700980, 1406113, 2817168, 5640787, 11280975, 22553200, 45097300, 90149110, 180171641, 360001235, 719290309, 1437274041, 2870143830, 5726092077, 11425527566 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A233366

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..31

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Sequence in context: A043971 A233367 A211919 * A243039 A243385 A242580

Adjacent sequences:  A233358 A233359 A233360 * A233362 A233363 A233364

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 08 2013

STATUS

approved

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Last modified February 18 12:10 EST 2020. Contains 332018 sequences. (Running on oeis4.)