# A230551 (b-file synthesized from sequence entry)
1 1
2 2
3 4
4 10
5 24
6 62
7 154
8 396
9 992
10 2536
11 6376
12 16238
13 40914
14 103954
15 262298
16 665478
17 1680726
18 4260262
19 10766470
20 27274444