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Search: id:A058330
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| A058330 |
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a(n) is smallest positive integer, distinct from any terms earlier in the sequence, such that (sum{k=1 to n}[a(k)]) divides (product{k=1 to n}[a(k)])*(sum{k=1 to n}[1/a(k)]). |
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+0
1
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| 1, 2, 4, 3, 7, 602, 292174, 200550, 21353, 14210, 6174, 2744, 8852, 5554, 3494, 7220, 1536, 2520, 1620, 1236, 896, 784, 1764, 140, 2560, 240, 1128, 3240, 1512, 280, 800, 243, 4557, 245, 1579, 666, 135, 2079, 2646, 4650, 250, 1862, 528, 496, 152, 304, 88
(list; graph; listen)
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OFFSET
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1,2
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LINKS
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Leroy Quet, Home Page (listed in lieu of email address)
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EXAMPLE
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a(4) = 3 because 3 is smallest positive integer m, not = to 1, 2, or 4, where (1 + 2 + 4 + m) divides 1 * 2 * 4 * m * (1 + 1/2 + 1/4 + 1/m).
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CROSSREFS
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Sequence in context: A166017 A035507 A138612 this_sequence A124256 A108503 A052131
Adjacent sequences: A058327 A058328 A058329 this_sequence A058331 A058332 A058333
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KEYWORD
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nonn
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AUTHOR
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Leroy Quet Dec 12 2000
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EXTENSIONS
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More terms from Naohiro Nomoto (6284968128(AT)geocities.co.jp), Jun 26 2001
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