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
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
