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A087506 - OEIS
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A087506
Primes in A087461.
0
5, 13, 71, 127, 163, 197, 227, 307, 317, 409, 523, 587, 593, 761, 857, 947, 1151, 1321, 1373, 1783, 1861, 1973, 2039, 2273, 2417, 2543, 3049, 3083, 3457, 3463, 3697, 3739, 4093, 4243, 4253, 4463, 4483, 4519, 4583, 4657, 4723, 4751, 5171, 5179, 5519, 5591
OFFSET
1,1
COMMENTS
Primes of the form (prime(k)+prime(2k))/2.
MATHEMATICA
Select[Table[(Prime[n]+Prime[2n])/2, {n, 500}], PrimeQ] (* Harvey P. Dale, May 06 2013 *)
CROSSREFS
Cf. A087461.
Sequence in context: A372799 A093118 A359690 * A068487 A075063 A100209
KEYWORD
nonn
AUTHOR
Ray Chandler, Sep 10 2003
STATUS
approved