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 A292203 #11 Sep 24 2017 21:05:58 %S A292203 3,2,7,5,13,11,31,29,23,19,17,53,61,59,41,43,47,37,97,103,101,109,107, %T A292203 127,113,83,89,73,79,71,67,193,199,197,223,211,241,251,233,239,229, %U A292203 227,163,167,173,191,181,179,151,149,157,137,139,131,389,397,409,401,433,439 %N A292203 Primes as they appear in A003188. %C A292203 a(n) is the m-th prime where m takes the values 2, 1, 4, 3, 6, 5, 11, 10, 9, 8, 7, 18, 15, 16, 17, 12, ... . %t A292203 f[n_] := BitXor[n, Floor[n/2]]; Select[Array[f, 300], PrimeQ] %Y A292203 Cf. A003188, A292204, A292205. %K A292203 nonn %O A292203 1,1 %A A292203 _Robert G. Wilson v_, Sep 11 2017