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A103753
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Numbers n such that the string 235711n is prime.
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0
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9, 27, 39, 43, 73, 79, 109, 117, 129, 187, 213, 219, 241, 243, 247, 253, 297, 319, 327, 331, 361, 367, 369, 387, 417, 433, 447, 457, 471, 493, 513, 523, 537, 547, 577, 591, 601, 621, 633, 639, 643, 661, 699, 703, 709, 717, 727, 757, 759
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| n=9 is in the sequence because 235711n = 2357119 is a prime number.
n=79 is in the sequence because 235711n = 23571179 is a prime number.
n=187 is in the sequence because 235711n = 235711187 is a prime number.
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PROG
| (MAGMA) [ n: n in [1..1750] | IsPrime(Seqint(Intseq(n) cat [1, 1, 7, 5, 3, 2])) ]; // From Vincenzo Librandi, Feb 02 2011
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CROSSREFS
| Cf. A103630, A103629, A103590, A103540, A099192.
Sequence in context: A108107 A036303 A116455 * A103965 A069069 A031088
Adjacent sequences: A103750 A103751 A103752 * A103754 A103755 A103756
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KEYWORD
| base,nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Mar 28 2005
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