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A233403 Number of (n+1)X(2+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal 1
11, 37, 35, 100, 265, 293, 756, 1937, 2346, 5788, 14533, 18598, 44777, 110861, 147478, 349309, 854388, 1171388, 2739451, 6632534, 9314701, 21564727, 51751900, 74137387, 170211322, 405346970, 590489477, 1346189954, 3184156943, 4705761017 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A233408

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..199

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Sequence in context: A052526 A306498 A195201 * A054293 A072859 A125744

Adjacent sequences:  A233400 A233401 A233402 * A233404 A233405 A233406

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 09 2013

STATUS

approved

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Last modified December 9 03:42 EST 2021. Contains 349625 sequences. (Running on oeis4.)