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 A132210 #4 Mar 30 2012 18:39:45 %S A132210 1,2,5,10,19,31,54,77,108,155,206,274,356,458,579,715,884,1068,1270, %T A132210 1531,1805 %N A132210 a(n) = index j such that A121736(j)=A030649(n). %C A132210 A030649 is a subset of A121736 (A. R. Povolotsky, Nov 06 2007). - _R. J. Mathar_, Nov 16 2007 %F A132210 A121736(a(n))=A030649(n). - _R. J. Mathar_, Nov 16 2007 %e A132210 For n=3, we list the index a(3)=5 because A121736(5)=1463 equals A030649(3). %Y A132210 Cf. A030649, A121736. %K A132210 nonn %O A132210 1,2 %A A132210 _Alexander R. Povolotsky_, Nov 06 2007 %E A132210 Better definition from _R. J. Mathar_, Nov 16 2007