# A147174 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 3
10 9
11 19
12 35
13 81
14 217
15 621
16 1903
17 7803
18 32967
19 151167
20 704477
21 3742519
22 21530169