# A229702 (b-file synthesized from sequence entry)
0 1
1 10
2 70
3 440
4 2675
5 16106
6 96720
7 580440
8 3482805
9 20897050
10 125382586
11 752295880
12 4513775735
13 27082654970
14 162495930500
15 974975583816
16 5849853503865
17 35099121024330
18 210594726147310
19 1263568356885400
20 7581410141314171