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 A014690 #18 Aug 10 2025 19:52:02
%S A014690 4,7,10,15,18,23,26,31,38,41,48,53,56,61,68,75,78,85,90,93,100,105,
%T A014690 112,121,126,129,134,137,142,157,162,169,172,183,186,193,200,205,212,
%U A014690 219,222,233,236,241,244,257,270,275,278,283,290,293,304,311,318,325,328
%N A014690 a(n) = n + prime(n+1).
%C A014690 In sequence of odd primes add 1 to first prime, add 2 to 2nd prime, add 3 to 3rd prime and so on.
%t A014690 a[n_]:=Prime[n+1]+n (* _Zak Seidov_, May 05 2005 *)
%t A014690 With[{nn=60},Prime[Range[2,nn+1]]+Range[nn]] (* _Harvey P. Dale_, Oct 02 2015 *)
%Y A014690 Essentially the same sequence as A095116.
%K A014690 nonn,easy
%O A014690 1,1
%A A014690 _Mohammad K. Azarian_
%E A014690 More terms from _Erich Friedman_