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A224126
Number of 4Xn 0..3 arrays with row sums nondecreasing and column sums unimodal.
1
35, 6627, 1070499, 145901795, 17292618579, 1830213565657, 176495247198733, 15745932467829042, 1315113237261820410, 103796589850715007818
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 4 of A224123
LINKS
Table of n, a(n) for n=1..10.
EXAMPLE
Some solutions for n=3
..0..2..0....0..0..2....0..0..0....0..1..0....2..0..2....2..0..0....2..2..1
..2..0..0....2..0..1....2..0..3....0..1..0....2..1..1....0..1..1....0..2..3
..2..2..0....0..3..0....0..3..2....0..0..3....0..2..3....0..1..1....2..3..2
..3..0..1....2..1..1....2..3..0....2..2..1....2..3..1....2..3..2....2..3..3
CROSSREFS
Sequence in context: A210268 A025036 A392557 * A387859 A249888 A381536
Adjacent sequences: A224123 A224124 A224125 * A224127 A224128 A224129
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 31 2013
STATUS
approved

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Last modified May 21 18:28 EDT 2026. Contains 395802 sequences.
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