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A233406 Number of (n+1)X(5+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal 0
41, 265, 1461, 6931, 57941, 216088, 1661918, 6745563, 44238419, 186635795, 1129245723, 4833595607 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A233408

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=4

..0..2..0..1..0..1....0..1..2..0..1..2....1..0..1..0..1..0....0..2..0..1..0..1

..2..1..2..0..2..0....1..2..0..2..0..1....0..1..0..1..0..2....1..0..2..0..2..0

..1..0..1..2..1..2....2..0..2..1..2..0....1..0..1..0..2..1....0..1..0..2..1..2

..2..1..2..1..2..1....0..2..0..2..1..2....0..2..0..2..0..2....2..0..2..0..2..0

..1..2..1..2..1..2....2..0..2..1..2..1....1..0..2..1..2..1....1..2..1..2..0..2

CROSSREFS

Sequence in context: A275128 A142113 A226041 * A020866 A142690 A089318

Adjacent sequences:  A233403 A233404 A233405 * A233407 A233408 A233409

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 09 2013

STATUS

approved

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Last modified November 27 04:59 EST 2021. Contains 349346 sequences. (Running on oeis4.)