OFFSET
2,2
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
David Naccache and Ofer Yifrach-Stav, Pattern Recognition Experiments on Mathematical Expressions, arXiv:2301.01624 [math.NT], 2022.
Ofer Yifrach-Stav, Fast and Private Pool Testing and Contributions to Experimental Mathematics, Doctoral thesis, École normale supérieure (Paris, France), HAL Science [math.cs] 2024, Art. No. tel-04513104. See pp. 108, 109, 212.
FORMULA
a(n) = [x^(p-3)] f(p,x) where p = A000040(n) and f(p,x) is defined in A006308. - Sean A. Irvine, Mar 07 2017
CROSSREFS
KEYWORD
sign,more
AUTHOR
EXTENSIONS
More terms, signs added, and offset corrected by Sean A. Irvine, Mar 07 2017
STATUS
approved