OFFSET
1,1
COMMENTS
Subset of A180241, containing terms arising from different bases only.
EXAMPLE
a(5)=17 since 17^2 = 289 = 5^2+2^3+4^4 = 12^2+4^3+3^4; (5,2,4) and (12,4,3) are all different. [Corrected by Bruno Berselli, Aug 25 2010]
CROSSREFS
KEYWORD
nonn
AUTHOR
Carmine Suriano, Aug 19 2010
STATUS
approved