# A203265 (b-file synthesized from sequence entry) 1 1 2 5 3 22 4 125 5 576 6 3554 7 16843 8 103917 9 521338 10 3189600 11 15813205 12 101516930 13 501568809 14 3154939135 15 16288999167 16 101770328205 17 513944896547 18 3322082384450 19 16707380500562 20 106553006536680 21 554390049927421 22 3479202589748077 23 17774723219041838