OFFSET
1,2
COMMENTS
a(4) > 1.5 * 10^8.
No further terms < 2.8*10^14. - Michael S. Branicky, Apr 20 2023
LINKS
Eric Weisstein's World of Mathematics, Perfect Power
EXAMPLE
For n = 2: 25 = 25 = 9 + 16.
For n = 3: 441 = 441 = 216 + 225 = 128 + 144 + 169.
CROSSREFS
KEYWORD
nonn,bref,more
AUTHOR
Ilya Gutkovskiy, Apr 19 2023
STATUS
approved