# A336419 (b-file synthesized from sequence entry)
0 1
1 2
2 4
3 10
4 24
5 64
6 184
7 536
8 1608
9 5104
10 16448
11 55136
12 187136
13 658624
14 2339648
15 8618208
16 31884640
17 121733120
18 468209408
19 1849540416
20 7342849216