A088471 Lunar product of distinct lunar prime divisors of n.

9, 9, 9, 9, 9, 9, 9, 9, 9, 90, 123456789987654321, 19, 19, 19, 19, 19, 19, 19, 19, 90, 91, 2345678998765432, 29, 29, 29, 29, 29, 29, 29, 90, 91, 92, 34567899876543, 39, 39, 39, 39, 39, 39, 90, 91, 92, 93, 456789987654, 49, 49, 49, 49, 49, 90, 91, 92

Offset

1,1

Comments

a(n) = Product_{p is a lunar divisor of n} p. (Each prime appears at most once in this product.)

Links

Table of n, a(n) for n=1..52.

D. Applegate, C program for lunar arithmetic and number theory [Note: we have now changed the name from "dismal arithmetic" to "lunar arithmetic" - the old name was too depressing]

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. A088469, A088470.

Sequence in context: A291514 A106326 A245400 * A087416 A290546 A291720

Adjacent sequences: A088468 A088469 A088470 * A088472 A088473 A088474

Keyword

nonn

Author

David Applegate, Nov 11 2003

Status

approved