id:A003718 - OEIS Search Results

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Expansion of tan(tan(x)).
(Formerly M3694)

+0
2

1, 4, 72, 2896, 203904, 22112000, 3412366336, 709998153728, 191483931951104, 64956739430973440, 27065724289967718400, 13588059904833174896640, 8089418253144660155301888, 5634743143901240164716904448, 4539998748622480932947483426816 (list; graph; listen)

	OFFSET	`0,2`
	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[ Tan[ x ] ] (* Odd Part *)`
	CROSSREFS	`Sequence in context: A100521 A111868 A060645 this_sequence A012947 A013066 A013102` `Adjacent sequences: A003715 A003716 A003717 this_sequence A003719 A003720 A003721`
	KEYWORD	`nonn`
	AUTHOR	`R. H. Hardin (rhhardin(AT)att.net)`
	EXTENSIONS	`Extended and formatted Mar 15 1997 by Olivier Gerard`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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