A003702 - OEIS

This site is supported by donations to The OEIS Foundation.

A003702

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

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

	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: A033595 A200987 A107731 * A101645 A060493 A198183` `Adjacent sequences: A003699 A003700 A003701 * A003703 A003704 A003705`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Simon Plouffe (simon.plouffe(AT)gmail.com)`

Content is available under The OEIS End-User License Agreement .

Last modified February 14 07:46 EST 2012. Contains 205597 sequences.