# A326348 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 24
5 115
6 609
7 3409
8 19728
9 116692
10 701062
11 4261581
12 26146111
13 161631115
14 1005522262
15 6289410686
16 39525228204
17 249427451071
18 1579885391573
19 10040587733693
20 64004713573508
21 409139527503760
22 2622049900367018
23 16843666877986873
24 108438876033442579