# A146279 (b-file synthesized from sequence entry)
1 1
2 1
3 1
4 1
5 3
6 13
7 51
8 211
9 749
10 2651
11 19761
12 133713
13 1247055
14 13243557
15 208954265
16 3004516121
17 57775455787
18 1089272926485
19 30671906403639
20 864548428805023