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A171483 a(n) = 0+1+2+...+n in lunar arithmetic in base 4 written in base 4. 0
0, 1, 2, 3, 13, 13, 13, 13, 23, 23, 23, 23, 33, 33, 33, 33, 133, 133, 133, 133, 133, 133, 133, 133, 133, 133, 133, 133, 133, 133, 133, 133, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 233, 333, 333, 333, 333, 333, 333, 333, 333 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Table of n, a(n) for n=0..55.

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: A129671 A117684 A056445 * A100385 A250184 A128460

Adjacent sequences:  A171480 A171481 A171482 * A171484 A171485 A171486

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Oct 02 2010

STATUS

approved

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Last modified September 26 06:16 EDT 2021. Contains 347664 sequences. (Running on oeis4.)