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A268105
Number of 2Xn 0..n arrays with every repeated value in every row and column greater than or equal to the previous repeated value.
2
4, 81, 4096, 378225, 56791296, 12650850576, 3926389806144, 1621309443347169, 859957083064464100, 569966660957291549809, 461690884178405990127504, 448823671401604409584451856, 515728792901852626366779599104
OFFSET
1,1
COMMENTS
Row 2 of A268103.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..5..5....0..0..0..3..0....0..0..0..3..4....0..0..1..1..0
..0..3..5..2..3....0..0..3..0..4....0..0..1..3..3....0..3..4..3..4
CROSSREFS
Cf. A268103.
Sequence in context: A128911 A268206 A337155 * A068087 A324088 A357513
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 26 2016
STATUS
approved