# A271364 (b-file synthesized from sequence entry)
1 1
2 1
3 2
4 4
5 8
6 15
7 29
8 52
9 93
10 162
11 279
12 463
13 769
14 1236
15 1975
16 3100
17 4824
18 7358
19 11200
20 16706