5628851293domain: NAppears in sequencesExpansion of 1/((1-x)*(1-12*x)).at n=9A016125a(n) = n^9 + n^8 + n^7 + n^6 + n^5 + n^4 + n^3 + n^2 + n + 1.at n=12A103623a(n) = ((n+1)^(n-1) - 1)/n.at n=10A125598