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A171816 Smallest number of rank n in the poset of lunar numbers. 0
9, 8, 7, 6, 5, 4, 3, 2, 1, 10, 100, 1000, 10000, 100000, 1000000, 10000000, 100000000, 1000000000, 10000000000, 100000000000, 1000000000000, 10000000000000, 100000000000000, 1000000000000000, 10000000000000000, 100000000000000000, 1000000000000000000, 10000000000000000000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

COMMENTS

We have now changed the name from "dismal arithmetic" to "lunar arithmetic" - the old name was too depressing. - N. J. A. Sloane, Aug 06 2014

LINKS

Table of n, a(n) for n=0..27.

D. Applegate, M. LeBrun and N. J. A. Sloane, Dismal Arithmetic, arxiv:1107.1130 (2011).

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

CROSSREFS

Cf. A087061 (definition of lunar sum and product), A087062 (table of lunar product), A087097 (lunar (formerly dismal) primes).

Cf. A161813 (lunar poset rank of n), A144171, A144175, A171786, A171787, A171788, A171789, A171794, A171795, A171796, A191752, A191753.

Sequence in context: A138531 A030076 A269667 * A083824 A087029 A104348

Adjacent sequences:  A171813 A171814 A171815 * A171817 A171818 A171819

KEYWORD

nonn,base

AUTHOR

David Applegate, Marc LeBrun and N. J. A. Sloane, Oct 15 2010

EXTENSIONS

Edited by M. F. Hasler, Nov 12 2017

STATUS

approved

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Last modified June 19 19:11 EDT 2019. Contains 324222 sequences. (Running on oeis4.)