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Search: id:A090817
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A090817 a(n)=numerator(B(2*prime(n))) where prime(n)=n-th prime and B(k) denotes the k-th Bernoulli number. +0
1
1, 1, 5, 7, 854513, 8553103, 2577687858367, 2929993913841559, 596451111593912163277961, 84483613348880041862046775994036021, 12300585434086858541953039857403386151 (list; graph; listen)
OFFSET

1,3

COMMENT

a(1)=1 (instead of -1)

PROGRAM

(PARI) a(n)=numerator(bernfrac(2*prime(n)))

CROSSREFS

Sequence in context: A083687 A101829 A056252 this_sequence A154052 A011496 A153420

Adjacent sequences: A090814 A090815 A090816 this_sequence A090818 A090819 A090820

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 11 2004

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


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