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 A100012 #27 Jun 09 2023 11:22:10 %S A100012 2,120,4930988840,14287387711051307292599794275187472361080 %N A100012 Let h(k) = a(k)*((145*a(k)^3)-(280*a(k)^2)+(179*a(k))-38)/6, then a(n) = h(a(n-1)) for n >= 1 and a(0) =2. %C A100012 The next term has 163 digits. %t A100012 NestList[#/6*(145#^3-280#^2+179#-38)&,2,3] (* _Harvey P. Dale_, Apr 09 2015 *) %Y A100012 Cf. A092182, A007501, A099179, A000332, A006564. %K A100012 easy,nonn %O A100012 0,1 %A A100012 _Jonathan Vos Post_, Nov 17 2004