# A057497 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 2
5 6
6 17
7 13
8 17
9 30
10 60
11 555
12 990
13 1616
14 2168
15 2467
16 2648
17 2294
18 1892
19 1283
20 810