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A268104
Number of 1Xn 0..n arrays with every repeated value in every row and column greater than or equal to the previous repeated value.
3
2, 9, 64, 615, 7536, 112476, 1981512, 40265487, 927338710, 23873974553, 679478391252, 21185458961316, 718142599280848, 26296505423775240, 1034431689380433024, 43505385550994833263, 1948060006167232265688
OFFSET
1,1
COMMENTS
Row 1 of A268103.
LINKS
EXAMPLE
Some solutions for n=5
..0..2..1..4..5....2..3..2..1..5....2..3..0..5..2....2..5..0..5..3
CROSSREFS
Cf. A268103.
Sequence in context: A059281 A269612 A269577 * A269683 A331658 A269487
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2016
STATUS
approved