OFFSET
1,2
LINKS
Sean A. Irvine, Java program (github)
EXAMPLE
For n=3, we have g(1)=2, g(2)=6, g(3)=10 with the sum a(3)=18.
CROSSREFS
KEYWORD
nonn,hard,more
AUTHOR
Naohiro Nomoto, Jan 29 2001
EXTENSIONS
Edited and a(6)-a(10) added by Max Alekseyev, Feb 22 2012
a(11) from Sean A. Irvine, Sep 21 2022
STATUS
approved