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 A152180 #2 Mar 30 2012 17:26:28 %S A152180 1,3,145,221,667,704,882,916,985,1153,1391,1392,1503,1524,1704,1774, %T A152180 1796,1849,2080,2111,2118,2134,2182,2223,2241,2244,2261,2441,2484, %U A152180 2536,2554,2692,2760,2879,2906,2920,3002,3024,3062,3069,3081,3093,3263,3270 %N A152180 Numbers n such that A073609(n+1)=nextprime(A073609(n)). %Y A152180 Cf. A073609 a(n) = the smallest prime > a(n-1) such that a(n)-a(n-1) is a square, A152181 a(n)=A073609(A152180(n)). %K A152180 nonn %O A152180 1,2 %A A152180 _Zak Seidov_, Nov 28 2008