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 A275149 #16 Aug 11 2016 06:00:13 %S A275149 3,9,7,2,1,3,0,9,6,8,8,4,2,4,0,0,4,1,4,8,5,6,5,4,0,7,0,2,2,7,3,9,8,7, %T A275149 3,4,2,2,9,8,7,3,7,0,9,9,5,2,7,6 %N A275149 Decimal expansion of the radius of convergence of the generating function for the enumeration of rooted identity trees (A004111). %D A275149 Steven R. Finch, Mathematical Constants, Cambridge University Press, 2003, Section 5.6.2 More Tree Varieties, p. 301. %H A275149 Antoine Genitrini, <a href="https://arxiv.org/abs/1605.00837">Full asymptotic expansion for Polya structures</a>, arXiv:1605.00837 [math.CO] 2016, p. 8. %F A275149 Equals 1 / A246169 (see formulas there given by _Vaclav Kotesovec_). %e A275149 0.39721309688424004148565407022739873422987370995276... %Y A275149 Cf. A004111, A246169. %K A275149 nonn,cons,more %O A275149 0,1 %A A275149 _Jean-François Alcover_, Aug 10 2016