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Number of lunar divisors (in base 10) of the n-th nonzero number whose decimal expansion contains only 0's and 1's (A007088(n)).
1

%I #14 Aug 06 2014 16:23:20

%S 9,18,90,27,90,180,819,36,90,180,738,270,738,1638,7461,45,90,180,738,

%T 270,819,1476,6570,360,738,1476,6732,2457,6570,14922,67968,54,90,180,

%U 738,270,738,1476,6570,360,738,1638,6570,2214,6732,13140,59868,450,738,1476,6732,2214,6570,13464,59868,3276,6570,13140,59868,22383,59868,135936,619902

%N Number of lunar divisors (in base 10) of the n-th nonzero number whose decimal expansion contains only 0's and 1's (A007088(n)).

%H N. J. A. Sloane, <a href="/A186951/b186951.txt">Table of n, a(n) for n = 1..99</a>

%H 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 <a href="/index/Di#dismal">Index entries for sequences related to dismal (or lunar) arithmetic</a>

%Y A007088, A087029, A186943.

%K base,nonn

%O 1,1

%A _N. J. A. Sloane_, Mar 01 2011