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A165691
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Primes p such that pi(p) is the product of the first digit of p and the rest of the number.
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OFFSET
| 1,1
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COMMENTS
| A subsequence of A112013. There is no further term up to 3*10^10.
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EXAMPLE
| 619=prime(6*19), so 619 is in the sequence.
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MATHEMATICA
| Do[If[h=IntegerDigits[Prime[m]]; m==h[[1]]*FromDigits[Delete[h, 1]],
Print[Prime[m]}]], {m, 355000}]
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CROSSREFS
| Cf. A000040, A112013.
Sequence in context: A146658 A145440 A112013 * A154419 A097223 A063494
Adjacent sequences: A165688 A165689 A165690 * A165692 A165693 A165694
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KEYWORD
| hard,more,nonn,base
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AUTHOR
| F. Firoozbakht (mymontain(AT)yahoo.com), Oct 14 2009
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