# A375489 (b-file synthesized from sequence entry)
0 1
1 2
2 8
3 48
4 384
5 384
6 4608
7 64512
8 1032192
9 18579456
10 37158912
11 817496064
12 19619905536
13 510117543936
14 14283291230208
15 42849873690624
16 1371195958099968
17 46620662575398912
18 1678343852714360832
19 63777066403145711616
20 255108265612582846464
21 10714547155728479551488