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Search: id:A001226
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| A001226 |
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Lerch's function q_2 = (2^{phi(n)} - 1)/n, n odd. |
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+0
1
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| 1, 1, 3, 9, 7, 93, 315, 17, 3855, 13797, 195, 182361, 41943, 9709, 9256395, 34636833, 31775, 479349, 1857283155, 430185, 26817356775, 102280151421, 372827, 1497207322929, 89756051247, 84215045, 84973577874915
(list; graph; listen)
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OFFSET
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1,3
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REFERENCES
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L. E. Dickson, History of the Theory of Numbers. Carnegie Institute Public. 256, Washington, DC, Vol. 1, 1919; Vol. 2, 1920; Vol. 3, 1923, see vol. 1, p. 109.
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CROSSREFS
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Cf. A000010.
Adjacent sequences: A001223 A001224 A001225 this_sequence A001227 A001228 A001229
Sequence in context: A010634 A146179 A137299 this_sequence A093498 A021255 A070342
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KEYWORD
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nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com).
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