-15624domain: ZAppears in sequencesa(n) = 1 - n^3.at n=25A024001a(n) = 1 - n^6.at n=5A024004Expansion of e.g.f.: x^2*G'(x)/G(x)^2, where G(x) satisfies G(x) = x*(1+log(1+G(x))).at n=8A247075Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = Product_{p|n, p prime} (1 - p^k).at n=59A322324