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 A246669 #13 Sep 08 2022 08:46:09
%S A246669 2,5,42,429,58786,742900,129644790,1767263190,343059613650,
%T A246669 1002242216651368,14544636039226909,45950804324621742364,
%U A246669 10113918591637898134020,150853479205085351660700,33868773757191046886429490,116157871455782434250553845880
%N A246669 Catalan(prime(n)).
%H A246669 Vincenzo Librandi, <a href="/A246669/b246669.txt">Table of n, a(n) for n = 1..100</a>
%t A246669 Table[(CatalanNumber[Prime[n]]), {n, 1, 20}]
%o A246669 (Magma) [Catalan(NthPrime(n)): n in [1..20]];
%Y A246669 Cf. A000040, A000108, A236308.
%K A246669 nonn
%O A246669 1,1
%A A246669 _Vincenzo Librandi_, Sep 01 2014