id:A029936 - OEIS Search Results

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Number of cusps of Gamma_1(n)\P_1(Q).

+0
3

1, 2, 2, 3, 4, 4, 6, 6, 8, 8, 10, 10, 12, 12, 16, 14, 16, 16, 18, 20, 24, 20, 22, 24, 28, 24, 30, 30, 28, 32, 30, 32, 40, 32, 48, 40, 36, 36, 48, 48, 40, 48, 42, 50, 64, 44, 46, 56, 60, 56, 64, 60, 52, 60, 80, 72, 72, 56 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`F. Hirzebruch et al., Manifolds and Modular Forms, Vieweg, 2nd ed. 1994, p. 158.`
	FORMULA	`Except for n=1, 2, 4, this is A029935 / 2.`
	CROSSREFS	`Sequence in context: A126246 A138369 A138374 this_sequence A114093 A077768 A143038` `Adjacent sequences: A029933 A029934 A029935 this_sequence A029937 A029938 A029939`
	KEYWORD	`nonn,nice`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

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