%I #5 Apr 24 2016 12:53:34
%S 0,48,218592
%N Number of true systems of magical circles of order n.
%H C. G. P. Kuschke, <a href="http://dx.doi.org/10.1090/S0002-9904-1934-05950-0">Magic circles</a>, Bull. Amer. Math. Soc. 40 (1934), 709-710.
%Y Cf. A006052.
%K nonn,more,bref
%O 2,2
%A _Michel Marcus_, Apr 24 2016