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A067232 Numbers n such that phi(3n-1)=sigma(n). +0
1
1, 3, 5, 7, 35, 39, 47, 51, 145, 210, 215, 287, 321, 355, 385, 532, 572, 635, 702, 1248, 1357, 1566, 1577, 1720, 1837, 2241, 2619, 2635, 2910, 3243, 4117, 4290, 4311, 5010, 5346, 5495, 5605, 6557, 7565, 7637, 7683, 9342, 9741, 9798, 10792, 11679, 13039 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Sequence in context: A095714 A137864 A069969 this_sequence A106115 A155034 A154544

Adjacent sequences: A067229 A067230 A067231 this_sequence A067233 A067234 A067235

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Feb 20 2002

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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