id:A009381 - OEIS Search Results

Search: id:A009381

Displaying 1-1 of 1 results found.

page 1

Expansion of ln(1+tan(x)/cosh(x)).

+0
1

0, 1, -1, 1, -2, 25, -136, 761, -4752, 42065, -386176, 3898321, -42551552, 521329705, -6816879616, 96017526281, -1446339889152, 23356125062945, -399659935891456, 7240133620964641, -138393644469911552, 2786977252450841785 (list; graph; listen)

	OFFSET	`0,5`
	MATHEMATICA	`Log[ 1+Tan[ x ]/Cosh[ x ] ]`
	CROSSREFS	`Adjacent sequences: A009378 A009379 A009380 this_sequence A009382 A009383 A009384` `Sequence in context: A062933 A123012 A080515 this_sequence A063264 A024533 A094218`
	KEYWORD	`sign,easy`
	AUTHOR	`R. H. Hardin (rhh(AT)cadence.com)`
	EXTENSIONS	`Extended with signs Mar 15 1997 by Olivier Gerard.`

page 1

Search completed in 0.002 seconds

Last modified May 16 23:01 EDT 2008. Contains 139884 sequences.

AT&T Labs Research