OFFSET
1,1
COMMENTS
Or: the 4-digit nonprimes with a digit-set of {2,3,5,7}. - R. J. Mathar, Sep 16 2009
CROSSREFS
KEYWORD
nonn,base,fini,full,less
AUTHOR
Lekraj Beedassy, Sep 09 2009
EXTENSIONS
Keyword:less,base added by R. J. Mathar, Sep 16 2009
STATUS
approved