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A171722 a(n) = 0+1+2+...+n in lunar arithmetic in base 9 written in base 10. 0
0, 1, 2, 3, 4, 5, 6, 7, 8, 17, 17, 17, 17, 17, 17, 17, 17, 17, 26, 26, 26, 26, 26, 26, 26, 26, 26, 35, 35, 35, 35, 35, 35, 35, 35, 35, 44, 44, 44, 44, 44, 44, 44, 44, 44, 53, 53, 53, 53, 53, 53, 53, 53, 53, 62, 62, 62, 62, 62, 62, 62, 62, 62, 71, 71, 71, 71, 71, 71, 71, 71, 71 (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: A269358 A356331 A115309 * A146029 A140576 A200447
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Oct 02 2010
STATUS
approved

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Last modified March 19 04:58 EDT 2024. Contains 370952 sequences. (Running on oeis4.)