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A258699 Maximal level of a torsion-free congruence subgroup of PSL(2,Z) of genus n. 0

%I #11 Jul 14 2016 00:21:36

%S 32,36,64,72,81,75,121,128,96,128,118,147,142,162,167,179,243,242,214,

%T 256,239,256,263,274,284

%N Maximal level of a torsion-free congruence subgroup of PSL(2,Z) of genus n.

%D C. J. Cummins and S. Pauli, Congruence Subgroups of PSL(2,Z) of Genus Less than or Equal to 24, 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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Last modified March 4 12:45 EST 2024. Contains 370532 sequences. (Running on oeis4.)