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A171678
a(n) = 0+1+2+...+n in lunar arithmetic in base 8 written in base 8.
0
0, 1, 2, 3, 4, 5, 6, 7, 17, 17, 17, 17, 17, 17, 17, 17, 27, 27, 27, 27, 27, 27, 27, 27, 37, 37, 37, 37, 37, 37, 37, 37, 47, 47, 47, 47, 47, 47, 47, 47, 57, 57, 57, 57, 57, 57, 57, 57, 67, 67, 67, 67, 67, 67, 67, 67, 77, 77, 77, 77, 77, 77, 77, 77, 177, 177, 177, 177, 177, 177
OFFSET
0,3
LINKS
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]
CROSSREFS
Sequence in context: A085158 A065639 A325829 * A039090 A138988 A055520
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Oct 02 2010
STATUS
approved