68333domain: NAppears in sequencesNumbers k such that k and k^2 use only the digits 3, 4, 6, 8 and 9.at n=18A137129a(n) = (2*n - 1)*(24*n^2 - 42*n + 19).at n=11A160174The function W_n(6) (see Borwein et al. reference for definition).at n=22A169711Number of partitions of n with up to eight distinct kinds of 1.at n=27A320695