id:A069975 - OEIS Search Results

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n*(16n^2-1).

+0
1

15, 126, 429, 1020, 1995, 3450, 5481, 8184, 11655, 15990, 21285, 27636, 35139, 43890, 53985, 65520, 78591, 93294, 109725, 127980, 148155, 170346, 194649, 221160, 249975, 281190, 314901, 351204, 390195, 431970, 476625, 524256, 574959 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`Sum(n>0, 1/a(n))=3ln(2)-2 (Ramanujan)`
	CROSSREFS	`Sequence in context: A027839 A034271 A071080 this_sequence A027779 A073509 A127595` `Adjacent sequences: A069972 A069973 A069974 this_sequence A069976 A069977 A069978`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 30 2002`

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Last modified November 21 14:49 EST 2008. Contains 150807 sequences.

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