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A233030 Number of (n+1)X(3+1) 0..3 arrays with row and column sums nondecreasing, and no adjacent elements equal 0
333, 3132, 55642, 566933, 7169782, 74939353, 839537894, 8735284526, 93454206487, 969444236906, 10189585915899 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A233031

LINKS

Table of n, a(n) for n=1..11.

EXAMPLE

Some solutions for n=3

..2..0..2..1....1..0..3..2....0..1..2..1....0..1..0..2....0..1..0..1

..1..2..1..2....0..3..0..3....2..3..0..3....1..3..2..0....2..0..3..0

..0..3..2..3....2..0..3..2....3..0..3..2....0..2..3..2....3..2..1..2

..1..2..3..2....1..2..1..3....0..3..2..3....3..1..2..3....0..3..2..3

CROSSREFS

Sequence in context: A043503 A202311 A319011 * A250835 A221827 A158859

Adjacent sequences:  A233027 A233028 A233029 * A233031 A233032 A233033

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 03 2013

STATUS

approved

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Last modified October 19 22:05 EDT 2021. Contains 348095 sequences. (Running on oeis4.)