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A233407 Number of (n+1)X(6+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal 0
42, 293, 2543, 21765, 216088, 1283251, 11808072, 70311171, 571963910, 3520539997 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A233408

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A036463 A190534 A248466 * A272139 A167654 A095266

Adjacent sequences:  A233404 A233405 A233406 * A233408 A233409 A233410

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 09 2013

STATUS

approved

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Last modified November 30 17:12 EST 2021. Contains 349424 sequences. (Running on oeis4.)