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A044251
Numbers n such that string 0,0 occurs in the base 9 representation of n but not of n-1.
0
81, 162, 243, 324, 405, 486, 567, 648, 729, 810, 891, 972, 1053, 1134, 1215, 1296, 1377, 1458, 1539, 1620, 1701, 1782, 1863, 1944, 2025, 2106, 2187, 2268, 2349, 2430, 2511, 2592, 2673, 2754, 2835, 2916, 2997, 3078, 3159
OFFSET
1,1
COMMENTS
Every element is a multiple of 81. The smallest positive multiple of 81 not in the sequence is 6642. - David W. Wilson, Aug 03 2005
CROSSREFS
Sequence in context: A139705 A226643 A353456 * A043454 A044632 A031494
KEYWORD
nonn,base
STATUS
approved