OFFSET
1,2
EXAMPLE
a(4) = 54994 = 1^4 + 2^4 + 4^4 + 8^4 + 15^4
= 1^4 + 2^4 + 9^4 + 10^4 + 14^4
= 2^4 + 5^4 + 6^4 + 11^4 + 14^4
= 3^4 + 7^4 + 8^4 + 10^4 + 14^4.
CROSSREFS
KEYWORD
sign,hard,more
AUTHOR
Ilya Gutkovskiy, Aug 12 2024
EXTENSIONS
a(5)-a(6) from Michael S. Branicky, Aug 12 2024
STATUS
approved