# A358494 (b-file synthesized from sequence entry)
0 1
1 1
2 2
3 6
4 24
5 121
6 722
7 5046
8 40344
9 363000
10 3629521
11 39921843
12 479041932
13 6227383740
14 87181920360
15 1307714287321
16 20923268909764
17 355693655298260
18 6402460885833720
19 121646408103159240
20 2432922931206035521
21 51091297862251106885
22 1124007130194903158430