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A191675 Euler totient function in base 10 lunar arithmetic. 1
1, 1, 1, 1, 1, 1, 1, 1, 9, 18, 2, 18, 18, 18, 18, 18, 18, 18, 90, 18, 18, 4, 18, 18, 18, 18, 18, 18, 90, 18, 18, 18, 6, 18, 18, 18, 18, 18, 90, 18, 18, 18, 18, 8, 18, 18, 18, 18, 90, 18, 18, 18, 18, 18, 10, 18, 18, 18, 90, 18, 18, 18, 18, 18, 18, 12, 18, 18, 90, 18, 18, 18, 18, 18, 18, 18, 14, 18, 90, 18, 18, 18, 18, 18, 18, 18, 18, 16, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,9
LINKS
Table of n, a(n) for n=1..99.
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]
D. Applegate, M. LeBrun, N. J. A. Sloane, Dismal Arithmetic, J. Int. Seq. 14 (2011) # 11.9.8.
Index entries for sequences related to dismal (or lunar) arithmetic
CROSSREFS
Cf. A191674.
Sequence in context: A141444 A061748 A159510 * A023418 A302232 A069528
Adjacent sequences: A191672 A191673 A191674 * A191676 A191677 A191678
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Jun 10 2011
STATUS
approved

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Last modified August 29 11:15 EDT 2024. Contains 375512 sequences. (Running on oeis4.)