37817088000domain: NAppears in sequencesJordan function J_8(n).at n=20A069093a(n) = Sum_{d|n, d==1 mod 4} d^8 - Sum_{d|n, d==3 mod 4} d^8.at n=20A321824a(n) = Sum_{d|n, n/d==1 (mod 4)} d^8 - Sum_{d|n, n/d==3 (mod 4)} d^8.at n=20A321832