52414domain: NAppears in sequencesa(n) = 4^n - 2*3^n.at n=8A002250Triangle T(n, k) giving coefficients in expansion of n! * Sum_{i=0..n} binomial(x - n, i) in powers of x.at n=25A054649Number of unlabeled uniform connected hypergraphs of weight n.at n=25A302129