OFFSET
1,1
COMMENTS
All digits of all terms are even. - Harvey P. Dale, Jan 25 2013
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..700
P. De Geest, World!Of Numbers
EXAMPLE
22 = 4 + 5 + 6 + 7;
242 = 44 + 55 + 66 + 77.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Sep 15 1998
STATUS
approved