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A063939 Numbers p from A001125 such that 2*p-3 is prime. 1
41, 251, 991, 1471, 2551, 3301, 4211, 4721, 4931, 5167, 5581, 5791, 7351, 8317, 8581, 9157, 9781, 11701, 12517, 13093, 15541, 16741, 16927, 17341, 18301, 18397, 19121, 19231, 20411, 22571, 23911, 24151, 25741, 26293, 26317, 26681, 27031 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harry J. Smith, Table of n, a(n) for n = 1..1000

PROG

(PARI) j=[]; forprime(p=3, 40000, if(znprimroot(p)==6, if(isprime(2*p- 3), j=concat(j, p)))); j

(PARI) { n=0; p=0; for (m=1, 10^9, p=nextprime(p+1); if (znprimroot(p)==6 && isprime(2*p - 3), write("b063939.txt", n++, " ", p); if (n==1000, break)) ) } \\ Harry J. Smith, Sep 03 2009

CROSSREFS

Cf. A001125.

Sequence in context: A322241 A140634 A140848 * A239716 A275180 A275128

Adjacent sequences:  A063936 A063937 A063938 * A063940 A063941 A063942

KEYWORD

easy,nonn

AUTHOR

Jason Earls, Aug 31 2001

STATUS

approved

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Last modified August 13 19:30 EDT 2020. Contains 336451 sequences. (Running on oeis4.)