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A006310
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Norms of Heilbronn sums NH_{2n+1}.
(Formerly M5366)
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0
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-1, -1, 97, -243, 12167, 577, 221874931, 157112485811, -2480435158303, 310695313260929, -51140551819476687829, 2727257042363914863401, -2572343484535669027372727, 1052824394331287344099620777449
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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COMMENTS
| Also, coefficients of period polynomials.
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REFERENCES
| W. L. Fouche', Arithmetic properties of Heilbronn sums, J. Number Theory, 19 (1984), 1-6.
D. H. and Emma Lehmer, Cyclotomy for nonsquarefree moduli, pp. 276-300 of Analytic Number Theory (Philadelphia 1980), Lect. Notes Math. 899 (1981).
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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CROSSREFS
| Sequence in context: A142504 A142689 A142908 * A141986 A123033 A142008
Adjacent sequences: A006307 A006308 A006309 * A006311 A006312 A006313
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KEYWORD
| sign
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| Entry revised Aug 10 2003
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