OFFSET
1,1
COMMENTS
Odd digit = 1, 3, 7 or 9.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Juri-Stepan Gerasimov, Jan 19 2009
EXTENSIONS
Definition clarified, keyword:fini removed, 413 replaced by 419 - R. J. Mathar, May 05 2010
STATUS
approved