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 A238260 #6 Sep 12 2015 11:00:29 %S A238260 6,3,1,2,6,6,8,7,8,8,7,4,1,1,5,4,6,7,9,7,0,0,4,8,2,3,2,5,7,9,7,0,6,8, %T A238260 7,9,5,5,6,1,5,4,6,9,0,5,1,4,4,6,1,1,4,0,8,9,2,0,0,6,9,7,3,4,0,5,0,8, %U A238260 5,4,1,5,0,3,7,6,6,1,7,0,8,5,6,0,4,0,0,8,5,0,1,7,6,1,1,0,9,3,3,5,4,6,3,5,5 %N A238260 Decimal expansion of a multiplicative constant related to A002465. %H A238260 V. Kotesovec, <a href="https://oeis.org/wiki/User:Vaclav_Kotesovec">Non-attacking chess pieces</a>, 6ed, 2013, p.249 %F A238260 Equals lim n->infinity A002465(n) / ((n-1)! * A238258^n). %e A238260 0.63126687887411546797... %Y A238260 Cf. A002465, A238258, A187235. %K A238260 nonn,cons %O A238260 0,1 %A A238260 _Vaclav Kotesovec_, Feb 21 2014