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A145484 Primes p such that 2p - 29 is a positive prime. 1
17, 23, 29, 41, 59, 71, 83, 89, 101, 113, 131, 149, 173, 191, 239, 269, 293, 311, 353, 401, 419, 443, 479, 491, 503, 521, 563, 569, 653, 659, 701, 719, 761, 821, 863, 881, 953, 971, 1013, 1049, 1091, 1151, 1163, 1181, 1193, 1223, 1289, 1319, 1361, 1409 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
FORMULA
a(n) = 2*A145478(n) - 29.
MATHEMATICA
aa = {}; k = 29; Do[If[PrimeQ[(k + Prime[n])/2], AppendTo[aa, k + Prime[n])/2]], {n, 1, 500}]; aa (* Artur Jasinski *)
Select[Prime[Range[7, 300]], PrimeQ[2#-29]&] (* Harvey P. Dale, Dec 14 2010 *)
CROSSREFS
Sequence in context: A137670 A330600 A217044 * A080830 A165566 A072184
KEYWORD
nonn
AUTHOR
Artur Jasinski, Oct 11 2008
STATUS
approved

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Last modified March 19 07:49 EDT 2024. Contains 370958 sequences. (Running on oeis4.)