# A372921 (b-file synthesized from sequence entry)
0 1
1 0
2 1
3 3
4 6
5 2
6 18
7 63
8 36
9 6
10 189
11 828
12 684
13 216
14 24
15 2484
16 13365
17 14400
18 6660
19 1440
20 120
21 40095
22 255474
23 339390
24 206280
25 65880
26 10800
27 720
28 766422
29 5645619
30 8915508
31 6707610
32 2827440
33 687960
34 90720
35 5040
36 16936857
37 141626232
38 259137144
39 232306704
40 121519440
41 39130560
42 7680960
43 846720
44 40320