# A309728 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 12
4 30
5 60
6 132
7 264
8 558
9 1116
10 2292
11 4584
12 9300
13 18600
14 37464
15 74928
16 150414
17 300828
18 602772
19 1205544
20 2413380
21 4826760
22 9658104
23 19316208
24 38641716
25 77283432
26 154585464
27 309170928
28 618379320
29 1236758640
30 2473592208
31 4947184416
32 9894519246
33 19789038492
34 39578377812