OFFSET
1,2
EXAMPLE
a(18) = 108, but a(19) = 1159 requires two digits to be inserted. a(100) = 10000. a(111)= 10101. 10101= 111*91.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Feb 21 2003
EXTENSIONS
More terms from Franklin T. Adams-Watters, Sep 25 2006
STATUS
approved