# A147243 (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
12 109
13 383
14 1291
15 5187
16 19147
17 85163
18 418695
19 2523925
20 15886439
21 116954773
22 866328129