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 A163249 #4 Jan 09 2015 15:46:33 %S A163249 2,5,8,11,15,17,22,25,29,35,38,45,49,51,56,62,68,70,76,81,84,90,94, %T A163249 100,108,113,115,119,122,127,141,145,152,154,164,166,172,179,183,189, %U A163249 195,197,208,211,215,217,229,241,246,248 %N A163249 Sum of prime(n) and number of numbers from this set less than n-th nonprime number (A018252(n)). %C A163249 a(n) = Sum of n-th nonprime number (A018252(n)) and number of numbers from this set less than n-th prime (A000040(n)). %F A163249 a(n) = prime(n) + A073425(n-1) = A018252(n) + A014689(n) = prime(n) + A018252(n)- n = prime(n) + A002808(n) - n. %K A163249 nonn,uned %O A163249 1,1 %A A163249 _Jaroslav Krizek_, Jul 23 2009