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A104170 Number of Smith numbers below 10^n. 1
1, 6, 49, 376, 3294, 29928, 278411, 2632758, 25154060, 241882509, 2335807857, 22635291815, 219935518608 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
REFERENCES
S. S. Gupta, Smith Numbers, Mathematical Spectrum, 37 (2004/5), 27-29.
LINKS
S. S. Gupta, Smith Numbers.
EXAMPLE
a(4)=376 because number of Smith number below 10^4 is 376.
CROSSREFS
Cf. A006753.
Sequence in context: A097299 A283226 A292124 * A098306 A055847 A371406
KEYWORD
nonn,base,hard,more
AUTHOR
Shyam Sunder Gupta, Mar 10 2005
EXTENSIONS
a(11), a(12) from Max Alekseyev, Jan 20 2010
a(13) from Max Alekseyev, Oct 01 2010
STATUS
approved

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)