# A263591 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 16
5 52
6 208
7 800
8 3360
9 16224
10 78088
11 393408
12 2189872
13 12371616
14 71835000
15 448860480
16 2871278464
17 18727425440
18 129070035784
19 913845701344