# A071729 (b-file synthesized from sequence entry)
0 1
1 4
2 14
3 49
4 170
5 592
6 2077
7 7347
8 26195
9 94080
10 340136
11 1237090
12 4523615
13 16621732
14 61343875
15 227296695
16 845252415
17 3153656040
18 11802018060
19 44289999150
20 166635655320
21 628432803024
22 2375216296554
23 8995668139262