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A233405 Number of (n+1)X(4+1) 0..2 arrays with row and column sums nondecreasing, and no adjacent elements equal 0
24, 100, 360, 1907, 6931, 21765, 86233, 274628, 965494, 3146010, 10444724, 33097949, 108522965, 338311791, 1086568168, 3360254074, 10607088651, 32550672493, 101662193862 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A233408
LINKS
EXAMPLE
Some solutions for n=5
..0..2..0..1..0....2..0..1..2..0....0..2..0..2..0....0..1..0..2..0
..2..0..2..0..1....0..1..2..0..2....2..0..1..0..1....1..0..2..0..1
..0..2..0..1..2....1..0..1..2..1....0..1..2..1..0....0..2..0..2..0
..1..0..1..2..1....0..1..2..1..2....2..0..1..0..2....1..0..1..0..2
..0..1..2..0..2....1..2..0..2..1....0..2..0..2..1....0..2..0..2..1
..2..0..1..2..1....0..1..2..1..2....2..1..2..1..2....2..0..2..0..2
CROSSREFS
Sequence in context: A042126 A157514 A100152 * A297798 A048529 A213842
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 09 2013
STATUS
approved

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Last modified June 9 03:24 EDT 2023. Contains 363168 sequences. (Running on oeis4.)