OFFSET
0,1
COMMENTS
2 cannot be represented as the sum of 3 distinct positive squares hence a(0)=2 (and offset is 0).
LINKS
Zak Seidov, Table of n, a(n) for n = 0..1000
EXAMPLE
29 = 2^2 + 3^2 + 4^2 and this is the only such representation.
89 = 2^2 + 6^2 + 7^2 = 3^2 + 4^2 + 8^2 and these are the only such representations.
101 = 1^2 + 6^2 + 8^2 = 2^2 + 4^2 + 9^2 = 4^2 + 6^2 + 7^2 and these are the only such representations.
CROSSREFS
KEYWORD
nonn,look
AUTHOR
Zak Seidov, May 20 2014
STATUS
approved