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 A306850 #11 Aug 07 2019 18:37:39 %S A306850 1532,3127,4450,4606,5628,7161,34804 %N A306850 The Lychrel number a(n) sets a new record for the 'Reverse and Add' steps in base 8 needed to reach a Lychrel number m < a(n) (i.e., its seed). %Y A306850 Cf. A306596. Records in A306851. %K A306850 nonn,base,more %O A306850 1,1 %A A306850 _A.H.M. Smeets_, Mar 13 2019