%I #11 Feb 14 2021 04:42:15
%S 52,839128,6701785562968,12083890870771962491424805136043760,
%T 2398361661260968891411175234090908403781861753200,
%U 1828394251506568537335964147598606029781088871684165132246643817787950377305065340000
%N Circulant directed p^2-graphs up to rotations only, indexed by odd primes p.
%H M. Klin, V. A. Liskovets and R. Poeschel, <a href="http://www.mat.univie.ac.at/~slc/wpapers/s36klp.html">Analytical enumeration of circulant graphs with prime-squared vertices</a>, Sem. Lotharingien de Combin., B36d, 1996, 36 pages.
%Y Cf. A038777.
%K nonn,easy
%O 1,1
%A _N. J. A. Sloane_, May 04 2000
%E More terms from _Valery A. Liskovets_, May 09 2001
%E Offset corrected by _Sean A. Irvine_, Feb 14 2021