id:A054728 - OEIS Search Results

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a(n) = smallest level N such that genus of modular curve X_0(N) is n (or -1 if no such curve exists).

+0
2

1, 11, 22, 30, 38, 42, 58, 60, 74, 66, 86, 78, 106, 105, 118, 102, 134, 114, 223, 132, 166, 138, 188, 156, 202, 168, 214, 174, 236, 186, 359, 204, 262, 230, 278, 222, 298, 240, 314, 246, 326, 210, 346, 270, 358, 282, 557, 306, 394, 312, 412, 318 (list; graph; listen)

	OFFSET	`0,2`
	COMMENT	`a(150) = -1, a(n) > 0 for 0<=n<=149.`
	REFERENCES	`J. A. Csirik, The genus of X_0(N) is not 150, preprint, 2000.`
	CROSSREFS	`Cf. A054727, A054728.` `Sequence in context: A095779 A062055 A066500 this_sequence A013576 A065998 A073729` `Adjacent sequences: A054725 A054726 A054727 this_sequence A054729 A054730 A054731`
	KEYWORD	`nonn`
	AUTHOR	`Janos A. Csirik (janos(AT)research.att.com), Apr 21 2000`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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