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 A052290 #17 Oct 15 2013 22:30:33
%S A052290 2,11,389,1961990553613,1678343852714360832019,
%T A052290 25563186766285862273530264901662157745369907200000037
%N A052290 Prime values of n!*2^n+n+1 = A000165(n)+n+1.
%C A052290 For a(6), n = 36. There are no additional terms up to n=1000. - _Harvey P. Dale_, Aug 06 2012
%C A052290 Primes for n = 0, 2, 4, 12, 18, 36, and no others for n < 5001. - _Robert G. Wilson v_, Aug 07 2012
%e A052290 If n=4, 2^4*4!+4+1 = 389 is prime, so 389 is a term.
%t A052290 Select[Table[n! 2^n+n+1,{n,0,1000}],PrimeQ] (* _Harvey P. Dale_, Aug 06 2012 *)
%Y A052290 Cf. A000165, A052289.
%K A052290 nonn
%O A052290 1,1
%A A052290 _Labos Elemer_, Feb 08 2000