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A065042 Numbers n such that prime(n) + pi(n) is a prime. +0
4
1, 3, 8, 13, 15, 16, 20, 39, 45, 53, 62, 65, 71, 72, 80, 82, 90, 91, 92, 95, 113, 115, 117, 118, 119, 121, 143, 145, 147, 153, 156, 164, 166, 177, 181, 186, 189, 190, 195, 196, 202, 203, 224, 254, 255, 265, 268, 273, 294, 296, 319, 322, 323, 328, 329, 338, 343 (list; graph; listen)
OFFSET

1,2

MATHEMATICA

Select[ Range[400], PrimeQ[ Prime[ # ] + PrimePi[ # ]] & ]

CROSSREFS

Cf. A100486, A100917.

Sequence in context: A043361 A023734 A045296 this_sequence A034260 A080706 A024615

Adjacent sequences: A065039 A065040 A065041 this_sequence A065043 A065044 A065045

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 05 2001

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Last modified July 4 18:25 EDT 2008. Contains 140886 sequences.


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