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Search: id:A113483
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| A113483 |
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a(n)=Prime(a(n-2)+Pi(a(n-1))), where Prime(n) means n-th prime and Pi(n) means number of primes<=n. |
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+0
1
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| 2, 3, 7, 17, 43, 127, 373, 1229, 4177, 15439, 59141, 242393, 1028051, 4607803, 21355507, 103637683, 519232333, 2706119771, 14531789681, 80784565951, 461802480011, 2722713380077, 16475872190489, 102523358575031
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OFFSET
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1,1
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MATHEMATICA
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a[1] = 2; a[2] = 3; a[n_] := a[n] = Prime[a[n - 2] + PrimePi[a[n - 1]]]; Array[a, 24] (* Robert G. Wilson v *)
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CROSSREFS
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Sequence in context: A105554 A135364 A051291 this_sequence A059801 A102226 A058334
Adjacent sequences: A113480 A113481 A113482 this_sequence A113484 A113485 A113486
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KEYWORD
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nonn
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AUTHOR
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Yasutsohi Kohmoto zbi74583(AT)boat.zero.ad.jp, Jan 12 2006
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(at)rgwv.com), Jan 13 2006
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