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 A144809 #9 Jan 15 2021 17:53:03 %S A144809 3,3,9,2,7,7,2,5,2,5,9,2,6,6,9,6,7,5,1,4,3,1,3,7,0,6,5,0,1,8,1,8,7,3, %T A144809 7,6,8,4,7,2,0,6,6,1,5,3,0,8,5,9,8,7,8,4,6,5,4,6,0,3,6,9,2,3,1,2,1,7, %U A144809 2,4,7,5,9,2,4,5,9,9,0,2,6,8,3,7,9,4,0,7,5,8,0,1,3,7,5,9,3,2,4,8,8,1,4,5,5 %N A144809 Decimal expansion of the constant 3.39277252592669675143137... arising in A144785. %Y A144809 Cf. A076393, A144785, A144802, A144803, A144804, A144805, A144806, A144807, A144808, A144810, A144811, A144812. %K A144809 cons,nonn %O A144809 1,1 %A A144809 _Artur Jasinski_, Sep 21 2008