OFFSET
1,2
LINKS
Bert Dobbelaere, Table of n, a(n) for n = 1..79
Bert Dobbelaere, C++ program
Eric Weisstein's World of Mathematics, Biquadratic Number
EXAMPLE
For n = 2: 635318657 = 59^4 + 158^4 = 133^4 + 134^4.
For n = 3: 811538 = 4^4 + 23^4 + 27^4 = 7^4 + 21^4 + 28^4 = 12^4 + 17^4 + 29^4.
For n = 4: 300834 = 1^4 + 4^4 + 12^4 + 23^4 = 1^4 + 16^4 + 18^4 + 19^4 = 3^4 + 6^4 + 18^4 + 21^4 = 7^4 + 14^4 + 16^4 + 21^4.
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Gutkovskiy, Feb 02 2023
EXTENSIONS
a(18)-a(19) from Michael S. Branicky, Feb 04 2023
More terms from Bert Dobbelaere, Feb 11 2023
STATUS
approved