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A064962 1000n+1, 1000n+3, 1000n+7, 1000n+9 are all primes. +0
2
13, 1447, 2062, 5527, 6760, 8062, 11554, 11890, 14467, 23113, 23482, 24952, 25150, 28201, 28300, 31072, 31576, 36217, 41584, 41599, 45331, 50635, 56914, 66688, 67639, 69376, 75079, 80002, 81157, 82240, 84517, 88948, 90010, 90376, 91018 (list; graph; listen)
OFFSET

1,1

LINKS

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

MATHEMATICA

Select[Range[10^5], PrimeQ[1000# + 1] && PrimeQ[1000# + 3] && PrimeQ[1000# + 7] && PrimeQ[1000# + 9] &]

PROGRAM

(PARI) { n=0; for (m=1, 10^9, if(isprime(1000*m + 1) && isprime(1000*m + 3) && isprime(1000*m + 7) && isprime(1000*m + 9), write("b064962.txt", n++, " ", m); if (n==1000, return)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Oct 01 2009]

CROSSREFS

Cf. A007811 and A064687.

Sequence in context: A128897 A091781 A156641 this_sequence A066457 A166929 A079917

Adjacent sequences: A064959 A064960 A064961 this_sequence A064963 A064964 A064965

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 29 2001

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.


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