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Search: id:A065313
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| 0, 1, 3, 4, 6, 7, 9, 11, 11, 12, 16, 17, 21, 23, 24, 24, 30, 30, 36, 37, 39, 40, 46, 47, 48, 51, 53, 54, 61, 62, 68, 70, 72, 74, 76, 77, 86, 87, 91, 92, 99, 100, 110, 112, 114, 117, 126, 128, 130, 132, 135, 137, 146, 150, 151, 154, 156, 157, 168, 171, 184, 186, 189
(list; graph; listen)
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OFFSET
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1,3
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,1000
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MATHEMATICA
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Table[PrimePi[w*PrimePi[w]], {w, 1, 100}].
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PROGRAM
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(PARI) { for (n=1, 1000, if (n>1, a=primepi(n*primepi(n)), a=0); write("b065313.txt", n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Oct 16 2009]
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CROSSREFS
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A000720[n*A000720(n)]
A000720, A000040.
Sequence in context: A126332 A039026 A123540 this_sequence A103566 A018825 A059555
Adjacent sequences: A065310 A065311 A065312 this_sequence A065314 A065315 A065316
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Oct 29 2001
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