112945domain: NAppears in sequencesNumbers n such that n | 9^n + 8^n + 7^n + 6^n + 5^n.at n=36A057253a(n) = (48^n - 1)/47.at n=4A218751G.f. A(x) satisfies 1/x = Sum_{n=-oo..+oo} A(x)^n * (A(x)^n - 1)^(n+1).at n=13A379199