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A069063 Composite n such that Sum phi(d)^2; d|n > n(n+1)/2. +0
1
25, 49, 55, 65, 69, 77, 85, 87, 91, 93, 95, 111, 115, 119, 121, 123, 125, 129, 133, 141, 143, 145, 155, 159, 161, 169, 175, 177, 183, 185, 187, 201, 203, 205, 209, 213, 215, 217, 219, 221, 235, 237, 245, 247, 249, 253, 259, 265, 267, 275, 287, 289, 291, 295 (list; graph; listen)
OFFSET

1,1

FORMULA

n such that A029939(n)>n(n+1)/2

CROSSREFS

Sequence in context: A090093 A004936 A062058 this_sequence A064937 A091300 A112771

Adjacent sequences: A069060 A069061 A069062 this_sequence A069064 A069065 A069066

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 04 2002

page 1

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Last modified December 2 11:54 EST 2009. Contains 167921 sequences.


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