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A051826 Number of numbers below 10^n with nonzero multiplicative digital root 6. 1
1, 15, 213, 2337, 23231, 231651, 2349105, 23926057, 242539688, 2437578213, 24286001675, 240505616138, 2376317894981, 23497985025226, 232875555403623, 2312981893109766 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
REFERENCES
William Mayne, sci.math, Jun 15 1991
LINKS
FORMULA
# { i : 10^(n-1) < i < 10^n and A051802(i)=6 }
CROSSREFS
Sequence in context: A135519 A179091 A201340 * A351515 A081196 A020287
KEYWORD
nonn,base,hard
AUTHOR
Dan Hoey, Dec 09 1999
STATUS
approved

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Last modified July 13 18:16 EDT 2024. Contains 374285 sequences. (Running on oeis4.)