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 A109384 #8 Sep 08 2022 08:45:19 %S A109384 32,512,131072,8589934592,36893488147419103232, %T A109384 680564733841876926926749214863536422912, %U A109384 231584178474632390847141970017375815706539969331281128078915168015826259279872 %N A109384 a(n) = 2^(2^(n+2)+1). %F A109384 a(n) = A070969(n+2)-1. %p A109384 A109384:=n->2^(2^(n+2)+1): seq(A109384(n), n=0..7); # _Wesley Ivan Hurt_, Apr 07 2015 %t A109384 Table[2^(2^(n + 2) + 1), {n, 0, 7}] (* _Wesley Ivan Hurt_, Apr 07 2015 *) %o A109384 (Magma) [2^(2^(n+2)+1) : n in [0..7]]; // _Wesley Ivan Hurt_, Apr 07 2015 %o A109384 (PARI) a(n)=2^(2^(n+2)+1) \\ _Charles R Greathouse IV_, Apr 07 2015 %Y A109384 Cf. A070969. %K A109384 nonn,easy %O A109384 0,1 %A A109384 _Creighton Dement_, Sep 02 2005