id:A003723 - OEIS Search Results

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Expansion of exp(tanh(x)).
(Formerly M4327)

+0
4

1, 1, 1, -1, -7, -3, 97, 275, -2063, -15015, 53409, 968167, -752343, -77000363, -166831871, 7433044411, 43685848289, -843598411471, -9398558916159, 107426835190735, 2116926930779225, -14072980460605907 (list; graph; listen)

	OFFSET	`0,5`
	COMMENT	`Row sums of triangle A111593.`
	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..100`
	MATHEMATICA	`Exp[ Tanh[ x ]]`
	CROSSREFS	`Cf. A003706, A003710.` `Sequence in context: A153722 A145758 A038269 this_sequence A054471 A086453 A112099` `Adjacent sequences: A003720 A003721 A003722 this_sequence A003724 A003725 A003726`
	KEYWORD	`sign`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net), Simon Plouffe (simon.plouffe(AT)gmail.com)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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