# A129369 (b-file synthesized from sequence entry)
0 1
1 1
2 6
3 18
4 70
5 246
6 924
7 3412
8 12870
9 48550
10 184756
11 705180
12 2704156
13 10399676
14 40116600
15 155114088
16 601080390
17 2333593350
18 9075135300
19 35345215180
20 137846528820
21 538257689684
22 2104098963720
23 8233430022168
24 32247603683100