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A171446 a(n) = 0+1+2+...+n in lunar arithmetic in base 3 written in base 3. 0
0, 1, 2, 12, 12, 12, 22, 22, 22, 122, 122, 122, 122, 122, 122, 122, 122, 122, 222, 222, 222, 222, 222, 222, 222, 222, 222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222, 1222 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
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]
CROSSREFS
Sequence in context: A308215 A216478 A181060 * A068515 A088240 A168457
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Oct 02 2010
STATUS
approved

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Last modified March 28 08:02 EDT 2024. Contains 371236 sequences. (Running on oeis4.)