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 A170806 Primes in lunar arithmetic in base 3 written in base 3. 5
 12, 20, 21, 22, 102, 201, 202, 212, 1002, 1012, 1021, 1022, 1102, 1201, 1202, 2001, 2002, 2011, 2012, 2021, 2022, 2101, 2102, 2112, 2122, 2201, 2202, 2212, 10002, 10012, 10021, 10022, 10112, 10121, 10122, 10211, 10212, 10221, 10222, 11002, 11102, 11201 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..42. 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] Index entries for sequences related to dismal (or lunar) arithmetic FORMULA a(n) = A007089(A130206(n)). - R. J. Mathar, Aug 06 2016 CROSSREFS Cf. A130206. Sequence in context: A208273 A046418 A171795 * A038528 A052020 A075078 Adjacent sequences: A170803 A170804 A170805 * A170807 A170808 A170809 KEYWORD nonn,base AUTHOR N. J. A. Sloane, Sep 30 2010 STATUS approved

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Last modified November 30 19:18 EST 2023. Contains 367462 sequences. (Running on oeis4.)