# A086628 (b-file synthesized from sequence entry) 0 1 1 2 2 3 3 8 4 23 5 70 6 230 7 782 8 2729 9 9740 10 35345 11 130018 12 483782 13 1817450 14 6884050 15 26261498 16 100808873 17 389101464 18 1509198827 19 5879305034 20 22993849657