OFFSET
21,2
REFERENCES
F. Smarandache, "Properties of the numbers", Univ. of Craiova Archives, 1975; Arizona State University Special Collections, Tempe, AZ.
LINKS
Eric Weisstein's World of Mathematics, Smarandache Sequences.
EXAMPLE
a(10)=concatenation of (1^10)(2^10)(3^10)...(9^10)(10^10)
CROSSREFS
KEYWORD
base,easy,nonn,less
AUTHOR
Alexandre Wajnberg, Apr 25 2005
STATUS
approved