950300domain: NAppears in sequencesNumbers k such that k and k^2 use only the digits 0, 3, 5, 7 and 9.at n=15A136940Triangular array read by row: T(m,n) = number of ways to obtain a single sphere by gluing the (labeled) sides of a (2m+1)-gon and a (2n+1)-gon, m >= n >= 0.at n=38A297897