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A095688
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Numbers n such that 10^n + 13 is prime.
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29
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1, 2, 3, 17, 25, 81, 140, 142, 152, 280, 291, 406, 4209, 4785, 8474, 9550, 9596, 21773, 22352, 24938, 38428, 48526, 65426, 75441, 76705
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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COMMENTS
| No other terms <=100,000. - [From Robert Price (pamandbobprice(AT)yahoo.com), March 3 2011]
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MATHEMATICA
| lst={}; Do[If[PrimeQ[10^n+13], AppendTo[lst, n]], {n, 10^4}]; lst [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Aug 20 2008]
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PROG
| (PARI) for(n=1, 1e4, if(ispseudoprime(10^n+13), print1(n", "))) \\ Charles R Greathouse IV, Jul 19 2011
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CROSSREFS
| Cf. A095680.
Sequence in context: A045343 A019388 A023214 * A029876 A084445 A193051
Adjacent sequences: A095685 A095686 A095687 * A095689 A095690 A095691
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KEYWORD
| nonn
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), Jul 05 2004
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EXTENSIONS
| More terms from Ryan Propper (rpropper(AT)stanford.edu), Sep 07 2005
5 more terms from Jason Earls (zevi_35711(AT)yahoo.com), Feb 08 2008
a(23)=65426 from Robert Price (pamandbobprice(AT)yahoo.com), Jan 09 2011
a(24:25)=75441,76705 from Robert Price (pamandbobprice(AT)yahoo.com), Jan 29 2011
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