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A233367 Number of (2+1)X(n+1) 0..1 arrays x(i,j) with row sums sum{j*x(i,j), j=1..n+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..2+1} nondecreasing 1
14, 46, 113, 250, 530, 1043, 1939, 3422, 5802, 9490, 15005, 23117, 34764, 51097, 73611, 104127, 144806, 198364, 268178, 358188, 473002, 618350, 800556, 1026633, 1305256, 1646531, 2061507, 2562949, 3165957, 3886739, 4742930, 5756595, 6950779 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A233366

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..63

EXAMPLE

Some solutions for n=5

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

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

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

CROSSREFS

Sequence in context: A039368 A043191 A043971 * A211919 A233361 A243039

Adjacent sequences:  A233364 A233365 A233366 * A233368 A233369 A233370

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 08 2013

STATUS

approved

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Last modified January 17 12:18 EST 2020. Contains 330958 sequences. (Running on oeis4.)