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 A076146 #24 Oct 15 2021 06:35:25 %S A076146 1,2,6,78,30966,11234495766,3197149582479668022558 %N A076146 a(1) = 1; a(n) = a(n-1)*prime(a(n-1)). %C A076146 Previous term * prime(previous term). Previous term + prime(previous term) is A074271. %C A076146 Matula-Goebel numbers of the finite ordinal numbers; see also A007097. - _Gus Wiseman_, Aug 30 2016 %t A076146 NestList[# Prime@ # &, 1, 6] (* _Michael De Vlieger_, Aug 30 2016 *) %Y A076146 Cf. A033286, A074271, A007097, A000040, A004111, A348067. %K A076146 nonn,hard,more %O A076146 1,2 %A A076146 _Zak Seidov_, Nov 02 2002 %E A076146 a(7) from _Gus Wiseman_, Aug 30 2016