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 A144175 Numbers of rank 2 in the poset of lunar numbers. 7
 7, 18, 28, 38, 48, 58, 68, 78, 80, 81, 82, 83, 84, 85, 86, 87, 88, 108, 119, 129, 139, 149, 159, 169, 179, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 208, 218, 229, 239, 249, 259, 269, 279, 289, 290, 291, 292, 293, 294, 295, 296, 297 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS David Applegate and N. J. A. Sloane, Table of n, a(n) for n = 1..23290 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] CROSSREFS Cf. A087097, A133626, A161813, A144171, A144175, A171786, A171787, A171788, A171789, A171794, A171795, A171796, A191752, A191753. Sequence in context: A138391 A242293 A179298 * A017473 A131191 A061876 Adjacent sequences:  A144172 A144173 A144174 * A144176 A144177 A144178 KEYWORD nonn,base AUTHOR David Applegate, Marc LeBrun and N. J. A. Sloane, Aug 25 2010, corrected Oct 14 2010 STATUS approved

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Last modified December 3 21:17 EST 2021. Contains 349468 sequences. (Running on oeis4.)