38991domain: NAppears in sequencesThe 10^n-th 3-almost prime.at n=4A120044The hyper-Wiener index of a benzenoid consisting of a straight-line chain of n hexagons (s=2; see the Gutman et al. reference).at n=9A193390Length of n-th iterate of the mapping 00->0010, 01->010, 10->000, starting with 00.at n=17A289019