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A191753
Numbers of rank 11 in the poset of lunar numbers.
7
1000, 1100, 1110, 1111, 10100, 11112, 11120, 11121, 11122, 11200, 11210, 11211, 11220, 11221, 11222, 12000, 12100, 12110, 12111, 12200, 12210, 12211, 12220, 12221, 12222, 20000, 21000, 21100, 21110, 21111, 22000, 22100, 22110, 22111, 22200, 22210, 22211, 22220, 22221, 22222
OFFSET
1,1
LINKS
D. Applegate, M. LeBrun and N. J. A. Sloane, Dismal Arithmetic [Note: we have now changed the name from "dismal arithmetic" to "lunar arithmetic" - the old name was too depressing]
D. Applegate, M. LeBrun, N. J. A. Sloane, Dismal Arithmetic, J. Int. Seq. 14 (2011) # 11.9.8.
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Jun 15 2011
STATUS
approved