This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A257089 #15 Apr 16 2015 15:27:11 %S A257089 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, %T A257089 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, %U A257089 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 %N A257089 a(n) = log_3 (A256689(n)). %C A257089 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. %H A257089 Wolfgang Hintze, <a href="/A257089/b257089.txt">Table of n, a(n) for n = 1..500</a> %F A257089 3^a(n) = A256689(n). a(n) = A007949(A256689(n)). %Y A257089 Cf. A046645 (k = 2, log_2), A257089 (k = 3, log_3), A257090 (k = 4, log_2), A257091 (k = 5, log_5). %K A257089 nonn %O A257089 1,4 %A A257089 _Wolfgang Hintze_, Apr 16 2015