# A367272 (b-file synthesized from sequence entry) 0 1 1 1 2 5 3 28 4 209 5 1826 6 18217 7 203106 8 2487361 9 33077566 10 473318201 11 7234847126 12 117435618577 13 2014339775800 14 36360190887217 15 688237505878726 16 13618646813974785 17 280960214041690038 18 6028928694559721305 19 134277542969681115870 20 3098232871805383942801