A191675 Euler totient function in base 10 lunar arithmetic.

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

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