189840domain: NAppears in sequencesOrdered products of the sides of primitive Pythagorean triangles.at n=12A063011Antidiagonal sums of the convolution array A213505.at n=13A213547Smallest number k such that prime(n) is the n-th divisor of k.at n=28A221647Expansion of e.g.f. exp(x^3 / (6 * (1 - x)^2)) / (1 - x).at n=8A373773