194871710domain: NAppears in sequencesFirst differences of 11^n (A001020).at n=8A055276a(n) = (n(n+1)^(n-2)+0^(n-2))/(n+1).at n=8A085390a(n) = n^8 - n^7.at n=11A240931Numbers n such that the n-th cyclotomic polynomial has a root mod 11.at n=31A245480a(n) = phi(n^8) = n^7*phi(n).at n=10A306412