A006311 Coefficients of period polynomials.

-3, 10, -84, -10989, 363883, -82620, -137550709, 645413252986, -7142036935967, -7522164033404415, -217498966742521653325, -10590850429623318361311, 14571491290875996179048369, -5355885371863393108886638462583

Offset: 2

Author

N. J. A. Sloane

Keywords

• sign

References

• 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).

Links

• Sean A. Irvine, Table of n, a(n) for n = 2..26

Formula

a(n) = [x^1] f(p,x) where p = A000040(n) and f(p,x) is defined in A006308. - Sean A. Irvine, Mar 08 2017

Extensions

More terms, signs added, and offset corrected by Sean A. Irvine, Mar 08 2017