234594360domain: NAppears in sequencesNumber of ordered set partitions of [n] where the maximal block size equals five.at n=7A320761Table read by rows, T(n, k) = Y(2*n, k, Z(2*n - k)) where Y are the partial Bell polynomials and Z(m) is the list [A126869(j), j=-1..2*m].at n=42A350463