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D. Shanks, Systematic examination of Littlewood's bounds on L(1,chi), pp. 267-283 of Analytic Number Theory, ed. H. G. Diamond, Proc. Sympos. Pure Math., 24 (1973). Amer. Math. Soc.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
Table of n, a(n) for n=1..6.
Sequence in context: A178806 A197864 A231616 * A126109 A046909 A041879
Adjacent sequences: A003416 A003417 A003418 * A003420 A003421 A003422
N. J. A. Sloane.