A233407 - OEIS

A233407

Number of (n+1)X(6+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal

42, 293, 2543, 21765, 216088, 1283251, 11808072, 70311171, 571963910, 3520539997

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OFFSET

1,1

COMMENTS

Column 6 of A233408

LINKS

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

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 09 2013

STATUS

approved