67648domain: NAppears in sequencesNumbers k such that k divides the (right) concatenation of all numbers <= k written in base 22 (most significant digit on right).at n=37A029515Expansion of phi_{8, 3}(x) where phi_{r, s}(x) = Sum_{n, m>0} m^r * n^s * x^{m*n}.at n=4A282781