# A333971 (b-file synthesized from sequence entry)
2 1
3 2
4 4
5 8
6 24
7 56
8 168
9 432
10 1320
11 3608
12 11216
13 31952
14 100720
15 295600
16 942272
17 2828112
18 9097256
19 27785112
20 90048656
21 278899152
22 909566560
23 2849498656
24 9342566152
25 29548420688
26 97323261664