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Search: id:A038580
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| A038580 |
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Primes with indices that are primes with prime indices. |
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+0
19
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| 5, 11, 31, 59, 127, 179, 277, 331, 431, 599, 709, 919, 1063, 1153, 1297, 1523, 1787, 1847, 2221, 2381, 2477, 2749, 3001, 3259, 3637, 3943, 4091, 4273, 4397, 4549, 5381, 5623, 5869, 6113, 6661, 6823, 7193, 7607, 7841, 8221, 8527, 8719, 9319, 9461, 9739
(list; graph; listen)
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OFFSET
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1,1
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REFERENCES
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R. E. Dressler and S. T. Parker, Primes with a prime subscript, J. ACM, 22 (1975), 380-381.
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LINKS
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T. D. Noe, Table of n, a(n) for n = 1..1000
N. Fernandez, An order of primeness, F(p)
N. Fernandez, More terms of this and other sequences related to A049076.
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FORMULA
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a(n) = primes(primes(primes(n))).
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MATHEMATICA
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Table[ Prime[ Prime[ Prime[ n ] ] ], {n, 1, 60} ]
Nest[ Prime, Range[45], 3] (from Robert G. Wilson v Mar 15 2004)
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CROSSREFS
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Primes for which A049076(p)>2.
Cf. A049076, A000040, A006450, A049090, A049203, A049202, A057849, A057850, A057851, A057847, A058332, A093047.
Sequence in context: A105910 A023259 A057470 this_sequence A106088 A077446 A023276
Adjacent sequences: A038577 A038578 A038579 this_sequence A038581 A038582 A038583
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KEYWORD
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easy,nonn,nice
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AUTHOR
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Brian L. Galebach (sequence(AT)ProbabilitySports.com)
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