# A290439 (b-file synthesized from sequence entry)
0 0
1 2
2 4
3 11
4 22
5 43
6 85
7 171
8 366
9 774
10 1586
11 3136
12 6123
13 12088
14 24283
15 49040
16 99031
17 200444
18 405931