# A316473 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 4
5 9
6 19
7 44
8 99
9 233
10 554
11 1346
12 3300
13 8219
14 20635
15 52300
16 133488
17 343033
18 886360
19 2302133
20 6005835