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A239629
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Factored over the Gaussian integers, the least positive number having n prime factors, including units -1, i, and -i.
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2
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1, 2, 5, 10, 30, 130, 390, 2730, 13260, 64090, 192270, 1345890, 7113990, 49797930, 291673590, 2041715130
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OFFSET
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1,2
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COMMENTS
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Here -1, i, and -i are counted as factors. The factor 1 is counted only in a(1).
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LINKS
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MATHEMATICA
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nn = 12; t = Table[0, {nn}]; n = 0; found = 0; While[found < nn, n++; cnt = Length[FactorInteger[n, GaussianIntegers -> True]]; If[cnt <= nn && t[[cnt]] == 0, t[[cnt]] = n; found++]]; t
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CROSSREFS
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Cf. A239627 (number of Gaussian factors of n, including units).
Cf. A239628 (similar to this sequence, but count all prime factors).
Cf. A239630 (number of distinct factors, excluding units).
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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