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A062737
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p and 4p-1 are both primes.
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4
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2, 3, 5, 11, 17, 41, 53, 71, 83, 131, 137, 173, 197, 227, 263, 281, 293, 383, 431, 467, 503, 521, 563, 587, 593, 617, 677, 683, 701, 743, 797, 827, 887, 911, 977, 983, 1013, 1061, 1091, 1151, 1163, 1181, 1277, 1307, 1361, 1481, 1511, 1523, 1553, 1607, 1613
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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LINKS
| Harry J. Smith, Table of n, a(n) for n=1,...,1000
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PROG
| (PARI) { n=0; forprime (p=2, 10^5, if (isprime(4*p - 1), write("b062737.txt", n++, " ", p); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 10 2009]
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CROSSREFS
| A005384, A007700, A005382.
Sequence in context: A014210 A203074 A014556 * A085613 A082605 A007755
Adjacent sequences: A062734 A062735 A062736 * A062738 A062739 A062740
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KEYWORD
| nonn
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AUTHOR
| Reiner Martin (reinermartin(AT)hotmail.com), Jul 12 2001
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