# A243693 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 32
4 233
5 1833
6 15180
7 130392
8 1151057
9 10378883
10 95182445
11 885053524
12 8324942620
13 79071217228
14 757310811912
15 7305728683824
16 70923966744609
17 692370887676567
18 6792525607165935
19 66933512163735000
20 662190712902022017
21 6574831459429388169
22 65494637699437417584