# A145860 (b-file synthesized from sequence entry)
1 1
2 2
3 3
4 6
5 16
6 49
7 169
8 742
9 3848
10 23784
11 176890
12 1574720
13 16764539
14 214487123
15 3284115855
16 60203667877
17 1323062783686
18 34845447884285
19 1099257570874298
20 41549582286031187
21 1881714538522030500
22 102107501292816609976