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A006310
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a(n) = norm of Heilbronn sum NH_{p}, with p = prime(n).
(Formerly M5366)
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1
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-1, -1, 97, -243, 12167, 577, 221874931, 157112485811, -2480435158303, 310695313260929, -51140551819476687829, 2727257042363914863401, -2572343484535669027372727, 1052824394331287344099620777449
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OFFSET
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1,3
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COMMENTS
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Also, coefficients of period polynomials.
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REFERENCES
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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
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KEYWORD
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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