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 A207802 #12 May 01 2016 01:46:08 %S A207802 1,2,3,4,5,8,6,16,7,32,9,64,10,128,12,256,11,512,18,1024,15,2048,24, %T A207802 4096,14,8192,27,16384,20,32768,36,65536,13,131072,48,262144,25, %U A207802 524288,54,1048576,21,2097152,72,4194304,30,8388608,81,16777216,22,33554432,96,67108864,40,134217728,108 %N A207802 Permutation of positive numbers. See comments. %C A207802 a(1)=1; on places 2,4,6,8,... we put 2^m, m=1,2,3,..., i.e., numbers with the greatest prime divisor p_1=2; on places 3,7,11,15,... we put numbers with the greatest prime divisor p_2=3; on places 5,13,21,29,... we put numbers with the greatest prime divisor p_3=5; etc. %C A207802 For general description of the order, see the comment in A207790. %F A207802 For n>1, a(n) = A125624(A209268(n-1)). - _Ivan Neretin_, Apr 30 2016 %Y A207802 Cf. A207790, A207800, A207801. %K A207802 nonn %O A207802 1,2 %A A207802 _Vladimir Shevelev_ and _Peter J. C. Moses_, Feb 20 2012 %E A207802 a(30) fixed by _Ivan Neretin_, Apr 30 2016