# A159243 (b-file synthesized from sequence entry)
1 2
2 4
3 8
4 15
5 24
6 41
7 85
8 159
9 314
10 651
11 1267
12 2496
13 4977
14 9889
15 19731
16 38945
17 77356
18 154693
19 308051
20 615768
21 1229080