A285178 Number of n^2 X n^2 S-permutation matrices that are disjoint from a given one.

0, 7, 17972, 41685061617, 232152032603580176504, 7236273578711450275537707547657855

Offset: 1

Author

N. J. A. Sloane, Apr 14 2017

Keywords

• nonn
• more

Comments

Note that although the two Yordzhev papers have similar titles, they are different papers.

Links

• Krasimir Yordzhev, On the Number of Disjoint Pairs of S-permutation Matrices, arXiv:12112:1628 [math.CO], 2012.
• Krasimir Yordzhev, On the number of mutually disjoint pairs of S-permutation matrices, Discrete Mathematics 340 (2017) 1442-1448.

Crossrefs

Cf. A107739, A285179, A285180.