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Search: id:A064052
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| A064052 |
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Not sqrt(n)-smooth: some prime factor of n is > sqrt(n). |
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+0
6
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| 2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 19, 20, 21, 22, 23, 26, 28, 29, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 44, 46, 47, 51, 52, 53, 55, 57, 58, 59, 61, 62, 65, 66, 67, 68, 69, 71, 73, 74, 76, 77, 78, 79, 82, 83, 85, 86, 87, 88, 89, 91, 92, 93, 94, 95, 97, 99, 101, 102
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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This set (S say) has density d(S) = Log(2) - Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 12 2002
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,1000
Eric Weisstein's World of Mathematics, Greatest Prime Factor
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PROGRAM
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(PARI) { n=0; for (m=2, 10^9, f=factor(m)~; if (f[1, length(f)]^2 > m, write("b064052.txt", n++, " ", m); if (n==1000, break)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 06 2009]
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CROSSREFS
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Cf. A048098, A063538, A063539.
Sequence in context: A119024 A048839 A122144 this_sequence A064594 A076144 A005117
Adjacent sequences: A064049 A064050 A064051 this_sequence A064053 A064054 A064055
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KEYWORD
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nonn,easy
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AUTHOR
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Dean Hickerson (dean.hickerson(AT)yahoo.com), Aug 28 2001
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