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 A186510 #26 Aug 06 2014 17:29:21 %S A186510 9,90,819,7461,67968,619902,5660208,51746211,473692869,4342348692, %T A186510 39865757616,366573510504,3376339346538,31152497957100, %U A186510 287964157783869,2666972253081303,24749535734382636,230152606404800004,2144836146346691706,20032155489077131482,187516277719282274940,1759326436323972795042 %N A186510 Number of lunar divisors of the decimal (lunar) number 111...1 (with n 1's). %C A186510 It appears that this gives the largest number of lunar divisors of any n-digit lunar number. %H A186510 N. J. A. Sloane, <a href="/A186510/b186510.txt">Table of n, a(n) for n = 1..50</a> %H A186510 D. Applegate, M. LeBrun and N. J. A. Sloane, <a href="http://arxiv.org/abs/1107.1130">Dismal Arithmetic</a> [Note: we have now changed the name from "dismal arithmetic" to "lunar arithmetic" - the old name was too depressing] %H A186510 <a href="/index/Di#dismal">Index entries for sequences related to dismal (or lunar) arithmetic</a> %Y A186510 Cf. A087029, A186443. %K A186510 base,nonn %O A186510 1,1 %A A186510 _N. J. A. Sloane_, Feb 22 2011 %E A186510 More terms from _N. J. A. Sloane_, Feb 26 2011