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 A165139 #7 Apr 04 2015 10:03:20 %S A165139 72,264,648,600,56,720,224,2904,600,288,648,792,4560,180,840,792,360, %T A165139 1500,1700,324,720,360,5152,900,576,828,4356,26460,19800,144,972,700, %U A165139 21780,1152,78408,7128,960,540,8064,7968,139080,1620,1296,71148,1960,6624,2280,8820,4680,144,495,19800,2016,2592,4356,468,1320,3204,2880 %N A165139 Multiplicative order of 2 in Z/mZ with m=A104017(n). %Y A165139 Cf. A104017, A162290, A163956. %K A165139 nonn %O A165139 1,1 %A A165139 _A.K. Devaraj_, Sep 05 2009 %E A165139 Corrected and extended by _M. F. Hasler_, Sep 23 2009 %E A165139 Edited by _N. J. A. Sloane_, Sep 23 2009, following suggestions from _M. F. Hasler_