# A274733 (b-file synthesized from sequence entry)
1 1
2 1
3 8
4 26
5 123
6 334
7 1295
8 3222
9 10172
10 25300
11 69258
12 161259
13 417582
14 925972
15 2200395
16 4794092
17 10769222
18 22543912
19 48728784
20 98926942