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Search: id:A154613
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| A154613 |
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Numbers n such that n and 23n+10 are both prime. |
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+0
1
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| 3, 11, 17, 29, 41, 47, 53, 59, 101, 113, 131, 167, 173, 179, 227, 239, 251, 269, 281, 383, 431, 449, 461, 479, 503, 509, 557, 563, 593, 641, 647, 677, 719, 743, 773, 797, 809, 827, 887, 911, 929, 953, 971, 977, 983, 1019, 1049, 1061, 1163, 1193, 1217, 1229
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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For n=3, 23n+10=79; n=281, 23*281+10=6473
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MAPLE
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a := proc (n) if isprime(n) = true and isprime(23*n+10) = true then n else end if end proc: seq(a(n), n = 1 .. 1400); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 21 2009]
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CROSSREFS
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Cf. A141914 (Primes congruent to 10 mod 23).
Sequence in context: A113803 A045431 A126691 this_sequence A109654 A038986 A154501
Adjacent sequences: A154610 A154611 A154612 this_sequence A154614 A154615 A154616
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KEYWORD
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nonn
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AUTHOR
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Vincenzo Librandi (vincenzo.librandi(AT)tin.it), Jan 15 2009
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EXTENSIONS
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Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Jan 21 2009
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