id:A066992 - OEIS Search Results

Search: id:A066992

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Integers of the form C(2n,n)*sum(i=1,n,1/phi(i)).

+0
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4, 72, 1000, 14700, 206388, 3201660, 46132944, 690153750, 8341753936986000, 127726170599795040, 1963050484817866410, 29928758453499691665, 466352632039095734625, 7143496319608441446500, 111027787209709780725315 (list; graph; listen)

	OFFSET	`1,1`
	CROSSREFS	`Sequence in context: A062018 A119580 A139745 this_sequence A165212 A100521 A111868` `Adjacent sequences: A066989 A066990 A066991 this_sequence A066993 A066994 A066995`
	KEYWORD	`nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 27 2002`

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.

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