id:A003702 - OEIS Search Results

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Expansion of tan(x)/cosh(x).
(Formerly M5110)

+0
1

1, -1, 21, -141, 10441, -183481, 29429661, -987318021, 276117553681, -15085947275761, 6514632269358501, -526614587249608701, 324871912636292700121, -36433570919762397948841, 30417659816002454665514541 (list; graph; listen)

	OFFSET	`0,3`
	REFERENCES	`N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).`
	LINKS	`T. D. Noe, Table of n, a(n) for n=0..50`
	MATHEMATICA	`Tan[ x ]/Cosh[ x ] (* Odd Part *)`
	CROSSREFS	`Sequence in context: A126489 A033595 A107731 this_sequence A101645 A060493 A041850` `Adjacent sequences: A003699 A003700 A003701 this_sequence A003703 A003704 A003705`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Simon Plouffe (simon.plouffe(AT)gmail.com)`

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.

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