157168domain: NAppears in sequencesa(n) = 2^n-n^4.at n=18A024014a(n) = 2^n - n^k, where k is the largest integer such that 2^n >= n^k.at n=16A215892Number of unlabeled rooted trees with n nodes such that the minimal outdegree of inner nodes equals 7.at n=48A244461