OFFSET
1,2
LINKS
R. Zumkeller, Table of n, a(n) for n = 1..21846 (full sequence)
EXAMPLE
A134941(552)=134941 --> 1+3+4+9+4+1=22 --> a(552)=2+2=4.
CROSSREFS
KEYWORD
base,fini,full,nonn
AUTHOR
Reinhard Zumkeller, May 25 2010
STATUS
approved