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 A119641 #17 Oct 09 2021 02:08:52 %S A119641 2,3,11,23,47,1301,7741,83453838443384019701, %T A119641 3497830604170469202903845457503189, %U A119641 3043448204076362393100321053325760617159315927820231750001 %N A119641 Prime numbers of trees with n unlabeled nodes. %F A119641 A000040 INTERSECTION A000055. %F A119641 a(n) = A000055(A119642(n)). - _Amiram Eldar_, Apr 22 2018 %Y A119641 Cf. A000055, A119642. %K A119641 nonn %O A119641 1,1 %A A119641 _Jorge Coveiro_, Jul 27 2006 %E A119641 Offset changed by _Michel Marcus_, Apr 23 2018