4842756domain: NAppears in sequencesBase-9 digits are, in order, the first n terms of the periodic sequence with initial period 1,0.at n=7A033119Numbers whose base-9 representation has exactly 8 runs.at n=0A043637a(n) = floor((n+2)^(n+2)/((n+2)^2-1)).at n=7A089815