# A089406 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 3 4 6 5 16 6 37 7 95 8 238 9 624 10 1650 11 4478 12 12356 13 34756 14 99313 15 288145 16 847366 17 2523092 18 7597834 19 23117382 20 71007196