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A102758
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Numbers n such that n3333333 is prime.
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0
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8, 10, 11, 22, 37, 59, 64, 71, 77, 82, 85, 89, 94, 98, 103, 109, 116, 119, 130, 134, 142, 145, 151, 154, 158, 166, 173, 178, 184, 215, 229, 236, 247, 250, 253, 259, 275, 298, 299, 301, 310, 316, 317, 323, 346, 347, 364, 380, 385, 389, 401, 406, 422, 425, 449, 460, 464, 467, 470
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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EXAMPLE
| If n=8, then n3333333 = 83333333 (prime).
If n=71, then n3333333 = 713333333 (prime).
If n=103, then n3333333 = 1033333333 (prime).
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PROG
| (MAGMA) [ n: n in [1..700] | IsPrime(Seqint([3, 3, 3, 3, 3, 3, 3] cat Intseq(n))) ]; // From Vincenzo Librandi, Feb 03 2011
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CROSSREFS
| Sequence in context: A122990 A062372 A046031 * A176815 A033872 A080752
Adjacent sequences: A102755 A102756 A102757 * A102759 A102760 A102761
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KEYWORD
| base,nonn
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AUTHOR
| Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Feb 25 2005
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