A171572 a(n) = 0+1+2+...+n in lunar arithmetic in base 5 written in base 10.

0, 1, 2, 3, 4, 9, 9, 9, 9, 9, 14, 14, 14, 14, 14, 19, 19, 19, 19, 19, 24, 24, 24, 24, 24, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74

Offset

0,3

Links

Table of n, a(n) for n=0..72.

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: A227928 A098293 A095260 * A113234 A372072 A316534

Adjacent sequences: A171569 A171570 A171571 * A171573 A171574 A171575

Keyword

nonn,base

Author

N. J. A. Sloane, Oct 02 2010

Status

approved