OFFSET
1,1
LINKS
Eric Weisstein's World of Mathematics, Lagrange's Four-Square Theorem, Sum of Squares Function.
CROSSREFS
KEYWORD
nonn,more,base
AUTHOR
Martin Renner, Jan 19 2011
EXTENSIONS
a(6) from Lars Blomberg, Jun 29 2011
a(7)-a(10) from Donovan Johnson, Jul 01 2011
a(10) corrected and a(11)-a(16) added by Hiroaki Yamanouchi, Aug 30 2014
STATUS
approved