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A066902 phi(prime(n)+1)=phi(prime(n)-1). 0
3, 5, 20, 156, 254, 377, 593, 1800, 5903, 5981, 7925 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

CROSSREFS

Sequence in context: A133102 A197156 A171864 * A007363 A103991 A086175

Adjacent sequences:  A066899 A066900 A066901 * A066903 A066904 A066905

KEYWORD

nonn

AUTHOR

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

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Last modified February 17 14:46 EST 2012. Contains 206047 sequences.