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 A116570 #20 Sep 21 2017 14:21:19 %S A116570 6,3,15,5,35,7,77,11,143,13,221,17,323,19,437,23,667,29,899,31,1147, %T A116570 37,1517,41,1763,43,2021,47,2491,53,3127,59,3599,61,4087,67,4757,71, %U A116570 5183,73,5767,79,6557,83,7387,89,8633,97,9797,101,10403,103,11021,107,11663 %N A116570 a(2*n) = prime(n+1) * prime(n+2), a(2*n-1) = prime(n+1). %H A116570 G. C. Greubel, <a href="/A116570/b116570.txt">Table of n, a(n) for n = 0..5000</a> %F A116570 a(2*n) = prime(n+1) * prime(n+2). a(2*n-1) = prime(n+1). - _Michael Somos_, Jul 20 2016 %Y A116570 Cf. A114557. %K A116570 nonn,less %O A116570 0,1 %A A116570 _Roger L. Bagula_, Mar 18 2006 %E A116570 Edited, new name using _Michael Somos_' formula, _Joerg Arndt_, Sep 21 2017