# A147379 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 1
6 1
7 3
8 7
9 15
10 33
11 101
12 381
13 1709
14 8457
15 46629
16 303839
17 2310935
18 20572541
19 212895819
20 2545278493
21 35199007061