|
%I #10 Aug 16 2020 05:27:02
%S 1,3,3,7,3,9,3,11,9,9
%N Maximal discrete supergroups of Gamma_0(n).
%D J. H. Conway, Understanding groups like Gamma_0(N), in Groups, Difference Sets and the Monster, de Gruyter, (1996), 327-343.
%F a(prime) = 3. - _Sean A. Irvine_, Aug 15 2020
%K nonn,more
%O 1,2
%A _N. J. A. Sloane_.
|
