# A146787 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 3
8 5
9 11
10 21
11 39
12 105
13 351
14 1205
15 4629
16 16631
17 70563
18 335933
19 1961161
20 12194507
21 84627809
22 599408761