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 A064634 #3 Mar 30 2012 18:50:18 %S A064634 0,16,30,35,43,54,56,64,69,71,82,90,92,94,96,107,121,126,131,133,141, %T A064634 143,145,147,158,160,162,170,175,177,182,187,195,203,208,213,221,226, %U A064634 228,230,232,234,245,247,258,260,265,267,269,283,285,293,295,300,302 %N A064634 a(0) = 0 and a(n) = Min { i > a(n-1) | A064466(i + 1) - A064466(i) > 2 } for n > 0. %C A064634 A064635(n) = A064466(a(n)) + 2 for n > 0. %Y A064634 Cf. A064466, A064635. %K A064634 nonn %O A064634 0,2 %A A064634 _Reinhard Zumkeller_, Oct 02 2001