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A087019 Lunar squares: n*n where * is lunar multiplication. 6
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 100, 111, 112, 113, 114, 115, 116, 117, 118, 119, 200, 211, 222, 223, 224, 225, 226, 227, 228, 229, 300, 311, 322, 333, 334, 335, 336, 337, 338, 339, 400, 411, 422, 433, 444, 445, 446, 447, 448, 449, 500, 511, 522, 533, 544, 555, 556, 557, 558 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

Sequence is not monotonic (1011*1011 = 1011111 > 1020*1020 = 1010200). In fact it even contains repetitions (11011*11011 = 11111*11111 = 111111111). See A172199. - N. J. A. Sloane, Dec 20 2010

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 0..10000

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]

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

CROSSREFS

Cf. A172199, A180513, A181319.

Sequence in context: A218556 A043314 A088472 * A044911 A110734 A080436

Adjacent sequences:  A087016 A087017 A087018 * A087020 A087021 A087022

KEYWORD

nonn,base

AUTHOR

Marc LeBrun and N. J. A. Sloane, Oct 19 2003

STATUS

approved

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Last modified March 26 10:42 EDT 2017. Contains 284111 sequences.