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Search: id:A062955
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| 0, 1, 4, 6, 16, 10, 36, 28, 48, 36, 100, 44, 144, 78, 112, 120, 256, 102, 324, 152, 240, 210, 484, 184, 480, 300, 468, 324, 784, 232, 900, 496, 640, 528, 816, 420, 1296, 666, 912, 624, 1600, 492, 1764, 860, 1056, 990, 2116, 752, 2016, 980, 1600, 1224, 2704
(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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PROGRAM
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(PARI) a(n)=if(n<1, 0, eulerphi(n^2)-eulerphi(n))
(PARI) { for (n=1, 1000, write("b062955.txt", n, " ", eulerphi(n^2) - eulerphi(n)) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 14 2009]
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CROSSREFS
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Sequence in context: A129597 A088843 A154784 this_sequence A133092 A056222 A138624
Adjacent sequences: A062952 A062953 A062954 this_sequence A062956 A062957 A062958
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KEYWORD
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nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Jul 22 2001
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