2357947690domain: NAppears in sequencesa(n) = 11^n-1.at n=9A024127Jordan function J_9(n).at n=10A069094a(n) = n^9 - 1.at n=10A258810a(n) = Sum_{d|n, n/d==1 mod 4} d^9 - Sum_{d|n, n/d==3 mod 4} d^9.at n=10A321833Values of records in A368698.at n=31A368989