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A066970 Integers of the form sum(i=1,m,phi(i)/gcd(m,i)). +0
1
1, 4, 20, 58, 178, 248, 880, 965, 2289, 2664, 4096, 3233, 7254, 15447, 30658, 35869, 49485, 102248, 116225, 272130, 247872, 322891, 407484, 521003, 444794, 929334, 1022620, 1653250, 1792704, 1859231 (list; graph; listen)
OFFSET

1,2
CROSSREFS

Sequence in context: A002492 A127920 A060122 this_sequence A033488 A018211 A135507

Adjacent sequences: A066967 A066968 A066969 this_sequence A066971 A066972 A066973

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Jan 26 2002

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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