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A094515 Consider numbers which are denominators of at least one reduced rational sum{k=1 to m} 1/k^n, taken over all positive integers m and n (a sequence not yet in the database). Sequence gives denominators which occur more than once. +0
2
2520, 3600, 27720, 360360, 5173168, 1296000, 153679680, 8923714800, 16003008000 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Cf. A094509.

Sequence in context: A069476 A068352 A068547 this_sequence A066531 A064592 A109480

Adjacent sequences: A094512 A094513 A094514 this_sequence A094516 A094517 A094518

KEYWORD

nonn

AUTHOR

njas, based on a suggestion of Hugo van der Sanden, Jun 05, 2004

EXTENSIONS

The sequence of denominators should be added too.

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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