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Search: id:A064448
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| A064448 |
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GCD[n^n,EulerPhi[n^n]]. |
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+0
1
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| 1, 2, 9, 128, 625, 15552, 117649, 8388608, 129140163, 2000000000, 25937424601, 2972033482752, 23298085122481, 1587429546508288, 29192926025390625, 9223372036854775808, 48661191875666868481, 13115469358432179191808
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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Harry J. Smith, Table of n, a(n) for n=1,...,100
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FORMULA
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a(n)=GCD[A000312(n), A000010(A000312(n))]
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PROGRAM
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(PARI) { for (n=1, 100, p=n^n; write("b064448.txt", n, " ", gcd(p, eulerphi(p))) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 14 2009]
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CROSSREFS
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A000312, A000010.
Sequence in context: A090242 A047684 A162955 this_sequence A110817 A110860 A050995
Adjacent sequences: A064445 A064446 A064447 this_sequence A064449 A064450 A064451
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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 02 2001
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