# A146678 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 4
10 7
11 14
12 21
13 42
14 97
15 337
16 907
17 3367
18 9291
19 36318
20 129686
21 674043
22 2983615
23 17944470
24 88292506
25 606666014
26 3595901269
27 30553144868
28 219341547026