11017036800domain: NAppears in sequencesa(n) = (2*n+1)*(n+1)!.at n=11A175925Number of minimum dominating sets in the n-triangular honeycomb bishop graph.at n=22A381559a(n) is the least k > 1 such that the factorial base expansion of k*n starts with that of n while the remaining digits are zeros.at n=17A382177