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%I #17 Jun 04 2016 07:56:38
%S 1116,2801,4107,6513,7257,9386,10416,18191,13726,21014,15622,27466,
%T 18095,33241,22871,40880,30809,54794,24935,60648,31137,66841,36135,
%U 59450,42289
%N Total number of congruence subgroups of PSL(2,Z) of genus n.
%H C. J. Cummins and S. Pauli, <a href="https://www.emis.de/journals/EM/expmath/volumes/12/12.2/pp243_255.pdf">Congruence Subgroups of PSL(2,Z) of Genus Less than or Equal to 24</a>, Experiment. Math. Volume 12, Issue 2 (2003), 243-255. See Table 1.
%Y A258691, A102474, A258693-A258700 give the ten sequences in Table 1 of Cummins and Pauli (2003).
%K nonn,more
%O 0,1
%A _N. J. A. Sloane_, Jun 07 2015
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