# A350971 (b-file synthesized from sequence entry)
0 0
1 0
2 2
3 6
4 40
5 180
6 1232
7 7266
8 56320
9 408360
10 3610112
11 30974526
12 309836800
13 3065784540
14 34342971392
15 384653685786
16 4778192404480
17 59724464976720
18 815553380483072
19 11249503075325046
20 167586815066767360
21 2527964965265232900
22 40815105402865713152
23 668249973079223076306
24 11626293107260590653440
25 205304046476194041001080