%I M2876 #9 Mar 08 2017 09:29:23
%S -3,10,-84,-10989,363883,-82620,-137550709,645413252986,
%T -7142036935967,-7522164033404415,-217498966742521653325,
%U -10590850429623318361311,14571491290875996179048369,-5355885371863393108886638462583
%N Coefficients of period polynomials.
%D D. H. and Emma Lehmer, Cyclotomy for nonsquarefree moduli, pp. 276-300 of Analytic Number Theory (Philadelphia 1980), Lect. Notes Math. 899 (1981).
%D N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
%H Sean A. Irvine, <a href="/A006311/b006311.txt">Table of n, a(n) for n = 2..26</a>
%F 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
%K sign
%O 2,1
%A _N. J. A. Sloane_.
%E More terms, signs added, and offset corrected by _Sean A. Irvine_, Mar 08 2017