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 A346216 #22 Dec 04 2021 12:34:59 %S A346216 1,18,690,12294,132788,1351223,13509072,135160791,1351856726, %T A346216 13517664323 %N A346216 a(n) = (10^n)-th Ulam number A002858. %C A346216 The terms a(0)-a(4) are from the b-file for A002858. The remaining terms are from the paper by Philip Gibbs. As the sequence settles, its terms lie very close to the straight line 13.51*n. %H A346216 Philip Gibbs, <a href="https://vixra.org/abs/1508.0085">An Efficient Method for Computing Ulam Numbers</a>, viXra:1508.0085 (2015). %H A346216 Wikipedia, <a href="http://en.wikipedia.org/wiki/Ulam_number">Ulam number</a>. %F A346216 a(n) = A002858(10^n). %Y A346216 Cf. A002858. %K A346216 nonn,more %O A346216 0,2 %A A346216 _Frank M Jackson_, Oct 16 2021 %E A346216 a(5)-a(9) from Philip Gibbs and _Jud McCranie_, Feb 29 2012 - Sep 09 2015