# A145545 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 4
5 9
6 20
7 48
8 115
9 285
10 715
11 1826
12 4711
13 12303
14 32387
15 85964
16 229662
17 617300
18 1667787
19 4527290
20 12340688
21 33766612
22 92707834
23 255329106