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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

Table of n, a(n) for n=1..13.

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: A027766 A097299 A283226 * A098306 A055847 A143165

Adjacent sequences:  A104167 A104168 A104169 * A104171 A104172 A104173

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 August 19 08:57 EDT 2017. Contains 290794 sequences.