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A266170
Number of species of maximal pairs of orthogonal Latin squares.
4
0, 0, 1, 0, 0, 0, 5, 2127, 91845941
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OFFSET
1,7
COMMENTS
These pairs are maximal in that they cannot be extended to a triple of MOLS.
LINKS
Table of n, a(n) for n=1..9.
P. Danziger, I. M. Wanless and B. S. Webb,
Monogamous Latin Squares
, J. Combin. Theory Ser. A 118 (2011), 796-807.
J. Egan and I. M. Wanless,
Enumeration of MOLS of small order
, Mathematics of Computation 85, 2016, 799-824.
Ian Wanless,
Data on MOLS
CROSSREFS
A129732
counts species of all pairs of MOLS whether maximal or not. Cf.
A266171
,
A266177
.
Sequence in context:
A004816
A327763
A247106
*
A114428
A074799
A172942
Adjacent sequences:
A266167
A266168
A266169
*
A266171
A266172
A266173
KEYWORD
nonn
,
more
AUTHOR
Ian Wanless
, Dec 22 2015
STATUS
approved
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Last modified May 28 18:29 EDT 2023. Contains 363019 sequences. (Running on oeis4.)