A000320 - OEIS

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A000320

Generalized tangent numbers.
(Formerly M3722 N1521)

4, 272, 55744, 23750912, 17328937984, 19313964388352, 30527905292468224, 64955605537174126592, 179013508069217017790464 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	REFERENCES	`D. Shanks, Generalized Euler and class numbers, Math. Comp. 21 (1967), 689-694; 22 (1968), 699.` `N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).` `N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).`
	CROSSREFS	`Sequence in context: A089667 A119008 A108134 * A101758 A134786 A190635` `Adjacent sequences: A000317 A000318 A000319 * A000321 A000322 A000323`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`Deleted formula producing A000326 rather than this sequence Sean A. Irvine (sairvin(AT)xtra.co.nz), Sep 09 2010`

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Last modified February 13 08:12 EST 2012. Contains 205451 sequences.