A171610 - OEIS

A171610

a(n) = 0+1+2+...+n in lunar arithmetic in base 7 written in base 7.

0, 1, 2, 3, 4, 5, 6, 16, 16, 16, 16, 16, 16, 16, 26, 26, 26, 26, 26, 26, 26, 36, 36, 36, 36, 36, 36, 36, 46, 46, 46, 46, 46, 46, 46, 56, 56, 56, 56, 56, 56, 56, 66, 66, 66, 66, 66, 66, 66, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166, 166

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,3

LINKS

Table of n, a(n) for n=0..65.

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: A138987 A318534 A265405 * A004835 A037341 A228730

Adjacent sequences: A171607 A171608 A171609 * A171611 A171612 A171613

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Oct 02 2010

STATUS

approved