OFFSET
1,2
COMMENTS
Conjecture: a(n) = 0 if and only if n is 11, 17 or 19.
EXAMPLE
a(23) = 2318423= 100801*23 and digit sum = 23. a(11) = a(17) = 0.
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Amarnath Murthy, Nov 20 2002
EXTENSIONS
Corrected and extended by Ray Chandler, Sep 05 2003
STATUS
approved