# A185070 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 25
4 2
5 224
6 32
7 2625
8 500
9 38056
10 8560
11 40
12 657433
13 164150
14 1960
15 13178880
16 3526656
17 71680
18 300585601
19 84389928
20 2442720
21 2240
22 7683776000
23 2232672000
24 83328000
25 224000
26 217534555161
27 64830707370
28 2931500880
29 14907200