89653248domain: NAppears in sequencesTheta series of D*_19 lattice.at n=35A022072a(n) = 2^n*binomial(n,2).at n=19A100381Ways to write the identity as a product of n 3-cycles in symmetric group S_4.at n=10A159277a(n) is the number of subsets of {1,2,...,n} that contain exactly two odd numbers.at n=37A330592