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 A111364 #4 Mar 31 2012 13:21:29 %S A111364 1,2,5,4,22,8,12,27,16,18,50,32,54,36,66,64,100,84,72,132,128,200,168, %T A111364 280,144,252,270,264,300,288,360,528,600,504,780,1040,540,1026,1092, %U A111364 840,720,1152,900,1320,1296,2184,1260,1080,1680,2376,2340,3150,2304,1800 %N A111364 Index of first occurrence of n in A033093 (or 0 if not present). %C A111364 Conjecture that the sequence contains no zeros; that is, A033093 is onto the nonnegative integers. Note that most of the values in the sequence are highly divisible, as would expected. a(7) appears to be the last odd value. %e A111364 a(7)=27 because A033093(27)=7 and no smaller n has A033093(n)=7. %Y A111364 Cf. A033093. %K A111364 base,nonn %O A111364 0,2 %A A111364 _Franklin T. Adams-Watters_, Nov 07 2005