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Numbers of rank 4 in the poset of lunar numbers.
8

%I #13 Aug 06 2014 16:14:23

%S 5,16,26,36,46,56,60,61,62,63,64,65,66,106,117,127,137,147,157,167,

%T 170,171,172,173,174,175,176,177,206,216,227,237,247,257,267,270,271,

%U 272,273,274,275,276,277,306,316,326,337,347,357,367,370,371

%N Numbers of rank 4 in the poset of lunar numbers.

%H David Applegate and N. J. A. Sloane, <a href="/A171787/b171787.txt">Table of n, a(n) for n = 1..16715</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>

%K nonn,base

%O 1,1

%A _David Applegate_ and _N. J. A. Sloane_, Oct 14 2010