-6481domain: ZAppears in sequencesH_n(-1/2), where H_n(x) is Hermite polynomial of degree n.at n=9A000321Square array A(n,k), n >= 0, k >= 1, read by antidiagonals downwards, where column k is the expansion of e.g.f. exp(-Sum_{j=1..k} x^j).at n=64A334561