3756718domain: NAppears in sequencesSum of fourth powers: 0^4 + 1^4 + ... + n^4.at n=28A000538a(n) = Sum_{k=1..n, gcd(n,k) = 1} k^4.at n=28A053820Sum of the fourth powers of the parts in the partitions of n into two parts.at n=28A294271Sum of the fourth powers of the parts in the partitions of n into two distinct parts.at n=28A294288