# A099885 (b-file synthesized from sequence entry)
0 1
1 2
2 6
3 12
4 20
5 40
6 120
7 240
8 272
9 544
10 1632
11 3264
12 5440
13 10880
14 32640
15 65280
16 65792
17 131584
18 394752
19 789504
20 1315840
21 2631680
22 7895040
23 15790080
24 17895424
25 35790848
26 107372544
27 214745088
28 357908480
29 715816960
30 2147450880
31 4294901760