OFFSET
1,1
EXAMPLE
n=4: k(4)-4=6-4=2=a(1).
n=5: k(5)-5=8-5=3=a(2).
n=6: k(6)-6=9-6=3=a(3).
n=7: k(7)-7=10-7=3=a(4).
n=9: k(9)-9=14-9=5=a(5).
CROSSREFS
KEYWORD
nonn
AUTHOR
Juri-Stepan Gerasimov, Sep 13 2008
EXTENSIONS
Extended by R. J. Mathar, Sep 26 2008
STATUS
approved