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 A119642 #19 Jul 08 2020 05:30:05 %S A119642 4,5,7,8,9,13,15,52,82,134,216,341,538,1414,17306,17582 %N A119642 Indices of prime numbers of trees with n unlabeled nodes. %C A119642 No other terms below 40000. - _Vaclav Kotesovec_, Jul 08 2020 %F A119642 A000055(a(n)) = A119641(n). - _Amiram Eldar_, Apr 22 2018 %Y A119642 Cf. A000055, A051420, A119641, A336042. %K A119642 nonn,more %O A119642 1,1 %A A119642 _Jorge Coveiro_, Jul 27 2006 %E A119642 Offset changed by _Michel Marcus_, Apr 22 2018 %E A119642 a(13)-a(16) from _Amiram Eldar_, Apr 22 2018