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 A088816 #8 Sep 22 2014 17:04:48
%S A088816 2,25,3123,823541,285311670609,302875106592251,827240261886336764175,
%T A088816 1978419655660313589123977,20880467999847912034355032910565,
%U A088816 2567686153161211134561828214731016126483467
%N A088816 Numbers of the form p^p - 2 where p is prime.
%C A088816 Sum of reciprocals = 0.5403214192032919719402677251
%F A088816 a(n) = A088730(n)-1=A088731(n)+1. - _R. J. Mathar_, Apr 26 2007
%t A088816 #^#-2&/@Prime[Range[10]] (* _Harvey P. Dale_, Sep 22 2014 *)
%o A088816 (PARI) ptop(n,m) = { sr=0; forprime(x=2,n, y=x^x-m; print1(y","); sr += 1.0/y; ); print(); print(sr) }
%K A088816 nonn
%O A088816 1,1
%A A088816 _Cino Hilliard_, Nov 23 2003