# A140662 (b-file synthesized from sequence entry) 1 1 2 3 3 8 4 20 5 50 6 126 7 322 8 834 9 2187 10 5797 11 15510 12 41834 13 113633 14 310571 15 853466 16 2356778 17 6536381 18 18199283 19 50852018 20 142547558 21 400763222 22 1129760414 23 3192727796 24 9043402500 25 25669818475 26 73007772801 27 208023278208