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 A173072 #8 Jul 04 2016 12:53:11
%S A173072 2,1,1,1,3,3,5,5,7,11,11,15,17,17,19,23,27,27,31,33,33,37,39,43,49,51,
%T A173072 51,53,53,55,67,69,73,73,81,81,85,89,91,95,99,99,107,107,109,109,119,
%U A173072 129,131,131,133,137,137,145,149,153,157,157,161,163,163,171,183,185
%N A173072 n-th prime minus n-th even number.
%F A173072 a(n)=A000040(n) - 2n + 2.
%t A173072 Table[Prime[n]-2(n-1),{n,70}] (* _Harvey P. Dale_, Jul 04 2016 *)
%Y A173072 See A179437 for another version.
%K A173072 nonn,easy
%O A173072 1,1
%A A173072 _Juri-Stepan Gerasimov_, Feb 09 2010
%E A173072 Edited by _Charles R Greathouse IV_, Mar 24 2010