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A233065 Number of (4+1)X(n+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..n+1} nondecreasing, and column sums sum{i*x(i,j), i=1..4+1} nondecreasing 1
66, 564, 4393, 30692, 197625, 1180594, 6637131, 35376058, 180164000, 881727864, 4167848342, 19104362313, 85219992355, 371017908349, 1580512646968, 6602183440874, 27094731309792, 109419938432611, 435460987461844 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A233062

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..22

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A155022 A202639 A175260 * A129218 A046409 A128952

Adjacent sequences:  A233062 A233063 A233064 * A233066 A233067 A233068

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 03 2013

STATUS

approved

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Last modified January 18 00:35 EST 2022. Contains 350410 sequences. (Running on oeis4.)