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 A179513 #4 May 24 2024 15:17:14 %S A179513 1,5,26,179,1600,18299,258850,4407623,88463546,2056904519,54625874590, %T A179513 1637606381371,54871264668362 %N A179513 a(1) = 1, a(n) = prime(a(n-1)) + 3*a(n-1). %t A179513 NestList[ Prime@# + 3# &, 1, 13] %Y A179513 Cf. A007097, A074271, A179274, A179511, A179512, A179514, A179515, A179516, A179517, A179518. %K A179513 nonn %O A179513 1,2 %A A179513 _Robert G. Wilson v_, Jul 17 2010