47045880domain: NAppears in sequencesJordan function J_6(n).at n=18A069091a(n) = n^6 - 1.at n=18A123866a(n) = (6*n + 1)^(2*n) - 1.at n=3A164278a(n) = Sum_{d|n, n/d==1 mod 4} d^6 - Sum_{d|n, n/d==3 mod 4} d^6.at n=18A321830