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A031500 Numbers whose base-10 representation has 2 fewer 0's than 9's. 0
99, 199, 299, 399, 499, 599, 699, 799, 899, 919, 929, 939, 949, 959, 969, 979, 989, 991, 992, 993, 994, 995, 996, 997, 998, 1199, 1299, 1399, 1499, 1599, 1699, 1799, 1899, 1919, 1929, 1939, 1949, 1959, 1969, 1979, 1989, 1991 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Range[2000], DigitCount[#, 10, 9]==DigitCount[#, 10, 0]+2&] (* Harvey P. Dale, Dec 13 2017 *)
CROSSREFS
Sequence in context: A097599 A033674 A043526 * A044431 A044812 A221373
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 28 15:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)