# A060955 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 3
5 5
6 10
7 35
8 70
9 216
10 567
11 2310
12 5775
13 21450
14 69498
15 243243
16 1153152
17 3620864
18 16336320
19 64664600
20 249420600
21 997682400
22 5462865408
23 21422145536