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A116034 Numbers n such that phi(n) plus the n-th prime is a prime. +0
2
1, 3, 7, 8, 9, 11, 12, 13, 16, 18, 20, 22, 24, 26, 29, 31, 33, 35, 36, 37, 38, 39, 42, 43, 47, 48, 49, 52, 53, 54, 66, 67, 70, 72, 73, 74, 75, 76, 77, 78, 79, 82, 84, 85, 90, 92, 93, 95, 98, 101, 104, 105, 110, 112, 115, 120, 122, 123, 124, 129, 133, 134, 140, 145 (list; graph; listen)
OFFSET

1,2

EXAMPLE

phi(145)+p(145) = 941 (prime).

CROSSREFS

Cf. A116033.

Sequence in context: A011398 A059101 A091679 this_sequence A122987 A047530 A096315

Adjacent sequences: A116031 A116032 A116033 this_sequence A116035 A116036 A116037

KEYWORD

nonn

AUTHOR

Giovanni Resta (g.resta(AT)iit.cnr.it), Feb 13 2006

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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