# A269023 (b-file synthesized from sequence entry)
1 2
2 4
3 8
4 19
5 51
6 141
7 392
8 1079
9 2957
10 8072
11 21987
12 59825
13 162695
14 442342
15 1202521
16 3268920
17 8885999
18 24154826
19 65659826
20 178482140