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A258695 Maximal index of a congruence subgroup of PSL(2,Z) of genus n. 0
72, 108, 108, 168, 180, 192, 192, 216, 220, 288, 324, 288, 330, 384, 300, 384, 364, 480, 384, 504, 408, 480, 486, 504, 546 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,1
LINKS
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.
CROSSREFS
A258691, A102474, A258693-A258700 give the ten sequences in Table 1 of Cummins and Pauli (2003).
Sequence in context: A118218 A242186 A205189 * A102562 A357460 A216426
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Jun 07 2015
STATUS
approved

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Last modified April 24 02:28 EDT 2024. Contains 371917 sequences. (Running on oeis4.)