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 A257089 a(n) = log_3 (A256689(n)). 3
 0, 1, 1, 2, 1, 2, 1, 4, 2, 2, 1, 3, 1, 2, 2, 5, 1, 3, 1, 3, 2, 2, 1, 5, 2, 2, 4, 3, 1, 3, 1, 6, 2, 2, 2, 4, 1, 2, 2, 5, 1, 3, 1, 3, 3, 2, 1, 6, 2, 3, 2, 3, 1, 5, 2, 5, 2, 2, 1, 4, 1, 2, 3, 8, 2, 3, 1, 3, 2, 3, 1, 6, 1, 2, 3, 3, 2, 3, 1, 6, 5, 2, 1, 4, 2, 2, 2, 5, 1, 4, 2, 3, 2, 2, 2, 7, 1, 3, 3, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS a(n) is the logarithm to the base 3 of the denominator of the Dirichlet series of zeta(s)^(1/3). For details, see A256689. LINKS Wolfgang Hintze, Table of n, a(n) for n = 1..500 FORMULA 3^a(n) = A256689(n). a(n) = A007949(A256689(n)). CROSSREFS Cf. A046645 (k = 2, log_2), A257089 (k = 3, log_3), A257090 (k = 4, log_2), A257091 (k = 5, log_5). Sequence in context: A034693 A216506 A072342 * A328892 A296131 A345344 Adjacent sequences: A257086 A257087 A257088 * A257090 A257091 A257092 KEYWORD nonn AUTHOR Wolfgang Hintze, Apr 16 2015 STATUS approved

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Last modified September 16 23:59 EDT 2024. Contains 375984 sequences. (Running on oeis4.)