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A033300 Smallest safe prime ((p-1)/2 is also prime) > n-th prime. 1
5, 5, 7, 11, 23, 23, 23, 23, 47, 47, 47, 47, 47, 47, 59, 59, 83, 83, 83, 83, 83, 83, 107, 107, 107, 107, 107, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 167, 179, 179, 227, 227, 227, 227, 227, 227, 227, 227 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 0..1000

MAPLE

with(numtheory); safeprime(ithprime(i));

MATHEMATICA

ssp[n_]:=Module[{p=NextPrime[Prime[n]]}, While[!PrimeQ[(p-1)/2], p=NextPrime[p]]; p]; Array[ssp, 50] (* Harvey P. Dale, Dec 22 2013 *)

CROSSREFS

Sequence in context: A300916 A134125 A097996 * A134130 A078551 A247877

Adjacent sequences:  A033297 A033298 A033299 * A033301 A033302 A033303

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified July 18 07:05 EDT 2019. Contains 325134 sequences. (Running on oeis4.)