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A233058 Number of (n+1)X(1+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..1+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing 1
7, 16, 33, 66, 132, 265, 530, 1052, 2092, 4183, 8354, 16635, 33179, 66383, 132711, 264751, 528676, 1057904, 2115653, 4224206, 8439821, 16888361, 33778253, 67474289, 134850638, 269827760, 539703540, 1078399254, 2155614282, 4313028554 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 1 of A233062

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..68

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Sequence in context: A101426 A296153 A190661 * A301721 A176449 A278945

Adjacent sequences:  A233055 A233056 A233057 * A233059 A233060 A233061

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 03 2013

STATUS

approved

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Last modified January 26 20:11 EST 2020. Contains 331288 sequences. (Running on oeis4.)