

A285180


Normalized number of n^2 X n^2 Sudokus.


3




OFFSET

0,3


COMMENTS

Equals A107739(n)/((n^2)!).
Note that although the two Yordzhev papers have similar titles, they are different papers.


LINKS

Table of n, a(n) for n=0..3.
Krasimir Yordzhev, On the Number of Disjoint Pairs of Spermutation Matrices, arXiv:12112:1628 [math.CO], 2012.
Krasimir Yordzhev, On the number of mutually disjoint pairs of Spermutation matrices, Discrete Mathematics 340 (2017) 14421448.


CROSSREFS

Cf. A107739, A285178, A285179.
Sequence in context: A175906 A144546 A165970 * A081357 A127708 A094896
Adjacent sequences: A285177 A285178 A285179 * A285181 A285182 A285183


KEYWORD

nonn,more


AUTHOR

N. J. A. Sloane, Apr 14 2017


STATUS

approved



