# A371755 (b-file synthesized from sequence entry) 0 1 1 4 2 28 3 221 4 1834 5 15657 6 136137 7 1199014 8 10661184 9 95493145 10 860339723 11 7788028028 12 70777321331 13 645359630071 14 5901209474518 15 54093485799726 16 496910913391428 17 4573312196055502 18 42160889572810597 19 389258294230352460 20 3598732127428879981