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Search: id:A064677
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| 0, 0, 0, 1, 1, 5, 2, 7, 3, 12, 1, 19, 6, 14, 12, 19, 9, 26, 8, 32, 18, 24, 9, 43, 18, 31, 27, 45, 16, 48, 17, 46, 35, 33, 35, 74, 20, 44, 38, 72, 27, 73, 28, 66, 62, 46, 21, 105, 40, 74, 51, 81, 28, 98, 50, 98, 62, 68, 39, 149, 34, 64, 82, 107, 62, 112, 43, 97, 75, 121, 46, 167
(list; graph; listen)
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OFFSET
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1,6
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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) pi(x, c) = forprime(p=2, x, c++); c d(n) = prime(n+1)-prime(n) for(n=1, 200, print1(sigma(n)-d(n)-pi(n), " "))
(PARI) { for (n=1, 1000, a=sigma(n) - (prime(n + 1) - prime(n)) - primepi(n); write("b064677.txt", n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Sep 21 2009]
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CROSSREFS
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Sequence in context: A115321 A127108 A093606 this_sequence A088520 A084340 A065925
Adjacent sequences: A064674 A064675 A064676 this_sequence A064678 A064679 A064680
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KEYWORD
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easy,nonn
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AUTHOR
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Jason Earls (zevi_35711(AT)yahoo.com), Oct 09 2001
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