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A233063 Number of (2+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..2+1} nondecreasing 1
16, 47, 130, 319, 755, 1680, 3673, 7751, 16254, 33352, 68448, 138469, 281122, 564810, 1140621, 2284335, 4601127, 9201288, 18508319, 36987885, 74343834, 148524185, 298379462, 596003105, 1196923732, 2390589937, 4799574872, 9585538381 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 2 of A233062

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..161

EXAMPLE

Some solutions for n=5

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

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

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

CROSSREFS

Sequence in context: A194268 A292171 A204609 * A208634 A333602 A083307

Adjacent sequences:  A233060 A233061 A233062 * A233064 A233065 A233066

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 03 2013

STATUS

approved

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Last modified June 19 00:04 EDT 2021. Contains 345125 sequences. (Running on oeis4.)