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 A080119 #9 Sep 20 2022 11:07:40 %S A080119 1,2,7,33,81,74395,8369196,215802898,414859094165,520973680640109, %T A080119 4064761999842441067,517978450857911919447,4255027826896017770661, %U A080119 5222501054779098990032001033,718000720375918750838217734094612383 %N A080119 Positions of A080118 in A014486. %F A080119 a(n) = A215406(A080118(n)). - _Peter Luschny_, Aug 10 2012 %p A080119 A080119 := n -> CatalanRankGlobal(A080118(n)); %o A080119 (Sage) %o A080119 def A080119(n) : return A215406(A080118(n)) %o A080119 [A080119(n) for n in (1..15)] # _Peter Luschny_, Aug 10 2012 %K A080119 nonn %O A080119 1,2 %A A080119 _Antti Karttunen_, Feb 11 2003