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 A099499 #13 Sep 08 2022 08:45:15
%S A099499 17,162287,2486784401,83695120256591,
%T A099499 84721522804414816904952398305908708011513455440403306207160333176150520399
%N A099499 Primes of the form A007925(n)=n^(n+1)-(n+1)^n.
%C A099499 The next term a(6)=883^884-884^883 has 2605 decimal digits and is too large to display.
%e A099499 a(2)=162287 because A007925(A072179(2))=6^7-7^6=162287 is prime.
%t A099499 Select[Table[n^(n+1)-(n+1)^n,{n,0,1000}],PrimeQ] (* _Vincenzo Librandi_, Jul 18 2012 *)
%o A099499 (Magma) [a: n in [0..50] | IsPrime(a) where a is n^(n+1)-(n+1)^n ]; // _Vincenzo Librandi_, Jul 18 2012
%Y A099499 Cf. A007925 n^(n+1)-(n+1)^n, A072179 n^(n+1)-(n+1)^n is prime, A099497 n^(n+1)-(n+1)^n is a semiprime, A099498 semiprimes of the form n^(n+1)-(n+1)^n.
%K A099499 nonn
%O A099499 1,1
%A A099499 _Hugo Pfoertner_, Oct 19 2004