# A147127 (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 7
11 15
12 27
13 51
14 137
15 397
16 1327
17 4515
18 15837
19 61007
20 262125
21 1291801