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 A087592 #5 Dec 05 2013 19:56:31 %S A087592 2,3,5,13,29,61,317,829,1073742653 %N A087592 Primes whose successive differences are increasing power of 2: a(1) = 2, a(n+1) = a(n) + 2^k; a(n+1) prime, k minimal and greater than the index for the previous term. %C A087592 Next term a(9) has 292 digits and is too large to include. %Y A087592 Cf. A033875, A087593. %K A087592 nonn %O A087592 1,1 %A A087592 _Amarnath Murthy_, Sep 18 2003 %E A087592 Corrected and extended by _Ray Chandler_, Sep 25 2003