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Search: id:A155471
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| A155471 |
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Primes n with distinct smallest digits of n and n-th prime. |
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+0
1
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| 2, 3, 5, 7, 17, 19, 23, 29, 37, 43, 47, 53, 59, 61, 67, 71, 79, 83, 97, 101, 103, 107, 109, 127, 131, 137, 139, 149, 151, 163, 173, 179, 181, 197, 223, 227, 229, 233, 239, 257, 263, 269, 277, 283, 293, 311, 313, 317
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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If n=2 and 3=prime(2), then 2<3 and 2=a(1). If n=3 and 5=prime(3), then 3<5 and 3=a(2). If n=5 and 11=prime(5), then 5>1 and 5=a(3). If n=7 and 17=prime(7), then 7>1 and 7=a(4). If n=17 and 59=prime(17), then 1<5 and 17=a(5), etc.
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CROSSREFS
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Cf. A000027, A000040.
Sequence in context: A072885 A042994 A129692 this_sequence A158015 A042995 A108222
Adjacent sequences: A155468 A155469 A155470 this_sequence A155472 A155473 A155474
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KEYWORD
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nonn,base
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AUTHOR
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Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jan 23 2009
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