42596domain: NAppears in sequencesa(n) = 4*n^3 + 4.at n=22A100214The number of orbits of 4-tuples of the dihedral group of order 2n acting on {1,2,...,n}.at n=43A236332Triangle read by rows: T(n,k) is the number of unlabeled simple graphs with n vertices and treewidth k.at n=41A263294Multiples of 1852.at n=23A303272