# A056317 (b-file synthesized from sequence entry)
1 6
2 15
3 120
4 645
5 3990
6 23295
7 140610
8 839790
9 5042610
10 30232965
11 181421850
12 1088390415
13 6530486970
14 39182081385
15 235093327980
16 1410554953080
17 8463334761210
18 50779978307010
19 304679900238330