OFFSET
3,1
COMMENTS
All terms are conjectural and have only been checked up to 4*10^9.
LINKS
W. Jagy and I. Kaplansky, Sums of Squares, Cubes and Higher Powers, Experimental Mathematics, vol. 4 (1995) pp. 169-173.
EXAMPLE
a(4) = 2543, since 2543 is the greatest number such that is not the sum of {2 squares, a nonnegative 5th power, and a 4th power} (at least up to 4*10^9).
CROSSREFS
KEYWORD
nonn
AUTHOR
XU Pingya, Feb 19 2020
STATUS
approved