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Search: id:A067243
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A067243 Numbers n such that sigma(n+1)+sigma(n-1)=6*phi(n). +0
1
34, 55, 141, 322, 664, 988, 1149, 1505, 2230, 2631, 2906, 2912, 8559, 11194, 18215, 18754, 57104, 60599, 62881, 64604, 78759, 81580, 96304, 96944, 97220, 98944, 99164, 126520, 182495, 192417 (list; graph; listen)
OFFSET

1,1
CROSSREFS

Sequence in context: A051991 A092888 A051969 this_sequence A055574 A103558 A103686

Adjacent sequences: A067240 A067241 A067242 this_sequence A067244 A067245 A067246

KEYWORD

easy,nonn

AUTHOR

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

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

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