OFFSET
1,1
COMMENTS
Subsequence of A256604.
LINKS
Chai Wah Wu, Table of n, a(n) for n = 1..10000
EXAMPLE
9^2 = 1^2 + 4^3 + 2^4 = 4^2 + 4^3 + 1^4 = 8^2 + 1^3 + 2^4.
21^2 = 11^2 + 4^3 + 4^4 = 12^2 + 6^3 + 3^4 = 19^2 + 4^3 + 2^4.
CROSSREFS
KEYWORD
nonn
AUTHOR
Chai Wah Wu, Feb 01 2016
STATUS
approved