# A365990 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 6
5 0
6 0
7 0
8 2520
9 40320
10 0
11 0
12 7484400
13 345945600
14 6227020800
15 0
16 81729648000
17 7410154752000
18 307697854464000
19 6402373705728000
20 2375880867360000
21 354798209525760000
22 25460995321681920000
23 1090665702016450560000
24 26003493399464380800000