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 A174185 #9 Feb 04 2019 02:08:37
%S A174185 1,7,8,9,12,15,19,20,21,23,24,25,30,32,33,34,35,36,37,39,41,42,45,46,
%T A174185 48,51,56,63,67,71,75,78,81,82,85,86,88,89,90,96,102,107,112,115,116,
%U A174185 117,120,121,123,126,128,132,135,137,146,150,152,153,156,158,159,163,164
%N A174185 Numbers k such that the k-th prime minus the k-th even nonprime is prime.
%C A174185 Numbers k such that prime(k) - (even nonprime)(k) is prime.
%e A174185 1 is a term because A000040(1) - A163300(1) = 2 (prime);
%e A174185 7 is a term because A000040(7) - A163300(7) = 3 (prime).
%p A174185 A163300 := proc(n) option remember ; if n = 1 then 0; else for a from procname(n-1)+2 by 2 do if not isprime(a) then return a ; end if; end do; end if; end proc:
%p A174185 for n from 1 to 300 do if isprime( ithprime(n) - A163300(n)) then printf("%d,",n) ; end if; end do: # _R. J. Mathar_, Apr 20 2010
%Y A174185 Cf. A000040, A163300.
%K A174185 nonn
%O A174185 1,2
%A A174185 _Juri-Stepan Gerasimov_, Mar 11 2010
%E A174185 Corrected (11 replaced with 12) by _R. J. Mathar_, Apr 20 2010