# A147207 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 13
9 37
10 65
11 115
12 397
13 1335
14 4065
15 16853
16 83455
17 458373
18 2464107
19 13365801
20 84069939
21 594053347