# A075055 (b-file synthesized from sequence entry)
1 1
2 6
3 20
4 70
5 252
6 7
7 3432
8 12870
9 48620
10 184756
11 705432
12 2704156
13 10400600
14 40116600
15 178296
16 601080390
17 2333606220
18 9075135300
19 35345263800
20 137846528820
21 538257874440
22 2104098963720
23 8233430727600
24 32247603683100