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A171649
a(n) = 0+1+2+...+n in lunar arithmetic in base 8 written in base 10.
0
0, 1, 2, 3, 4, 5, 6, 7, 15, 15, 15, 15, 15, 15, 15, 15, 23, 23, 23, 23, 23, 23, 23, 23, 31, 31, 31, 31, 31, 31, 31, 31, 39, 39, 39, 39, 39, 39, 39, 39, 47, 47, 47, 47, 47, 47, 47, 47, 55, 55, 55, 55, 55, 55, 55, 55, 63, 63, 63, 63, 63, 63, 63, 63, 127, 127, 127, 127, 127, 127
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: A032942 A273734 A115308 * A146028 A263469 A165804
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Oct 02 2010
STATUS
approved