-69900domain: ZAppears in sequencesSelf-convolution 7th power equals A106226, which consists entirely of digits {0,1,2,3,4,5,6} after the initial terms {1,7}.at n=8A106227G.f. A(x) satisfies: A(x)^7 = A(x^7) + 7*x.at n=8A352705G.f. A(x) satisfies A(x)^7 = A(x^7) + 7*A(x^8).at n=8A377258