id:A069052 - OEIS Search Results

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Denominator of sum(i=1,n,1/i^5).

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1, 32, 7776, 248832, 777600000, 259200000, 4356374400000, 139403980800000, 101625502003200000, 101625502003200000, 16366888723117363200000, 16366888723117363200000, 6076911214672415134617600000 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`If 1<=n<=19 a(n)=A007480(n)A002805(n) =denominator(sum(i=1, n, 1/i^4))denominator(sum(i=1, n, 1/i))`
	CROSSREFS	`Adjacent sequences: A069049 A069050 A069051 this_sequence A069053 A069054 A069055` `Sequence in context: A071310 A028461 A016829 this_sequence A086752 A139568 A139294`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 03 2002`

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Last modified October 13 20:18 EDT 2008. Contains 145016 sequences.

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