A186443 Records in A087029.

9, 18, 90, 180, 819, 1638, 7461, 14922, 67968

Offset: 1

Author

N. J. A. Sloane, Feb 21 2011

Keywords

• nonn
• more

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]
• Index entries for sequences related to dismal (or lunar) arithmetic

Crossrefs

Cf. A186510.