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A171438 a(n) = 0+1+2+...+n in lunar arithmetic in base 3 written in base 10. 0
0, 1, 2, 5, 5, 5, 8, 8, 8, 17, 17, 17, 17, 17, 17, 17, 17, 17, 26, 26, 26, 26, 26, 26, 26, 26, 26, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..71.

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

CROSSREFS

Sequence in context: A023398 A186501 A235452 * A200683 A286541 A078576

Adjacent sequences:  A171435 A171436 A171437 * A171439 A171440 A171441

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Oct 02 2010

STATUS

approved

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Last modified June 24 08:22 EDT 2017. Contains 288697 sequences.