357141domain: NAppears in sequencesWhen cubed gives number composed just of the digits 1, 2, 3, 4, 5.at n=28A061813Triangle T(n,k) = 10^(n-1) -1 + k*floor(9*10^(n-1)/(n+1)), with 1 <= r <= n, read by rows.at n=16A093850