# A067470 (b-file synthesized from sequence entry) 1 1 2 16 3 125 4 1296 5 16807 6 117649 7 2097152 8 16777216 9 134217728 10 1073741824 11 31381059609 12 282429536481 13 2541865828329 14 22876792454961 15 205891132094649 16 1853020188851841 17 16677181699666569 18 150094635296999121 19 1350851717672992089 20 12157665459056928801 21 109418989131512359209