163896domain: NAppears in sequencesExpansion of (eta(q^5) / eta(q))^6 in powers of q.at n=11A121591Number of Sidon subsets of {1,...,n} of size 5.at n=35A241689Triangle read by rows: T(n,k) is the number of rooted maps with n edges whose core comprises k edges, 1 <= k <= n.at n=30A318106