A171464 a(n) = 0+1+2+...+n in lunar arithmetic in base 4 written in base 10.

0, 1, 2, 3, 7, 7, 7, 7, 11, 11, 11, 11, 15, 15, 15, 15, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 127, 127, 127, 127, 127, 127

Offset

0,3

Links

Table of n, a(n) for n=0..69.

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: A104955 A011161 A305420 * A276730 A179894 A060215

Adjacent sequences: A171461 A171462 A171463 * A171465 A171466 A171467

Keyword

nonn,base

Author

N. J. A. Sloane, Oct 02 2010

Status

approved