# A089073 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 5
5 10
6 32
7 64
8 231
9 462
10 1792
11 3584
12 14586
13 29172
14 122880
15 245760
16 1062347
17 2124694
18 9371648
19 18743296
20 84021990
21 168043980
22 763363328
23 1526726656
24 7012604550
25 14025209100
26 65028489216
27 130056978432
28 607892634420