# A145312 (b-file synthesized from sequence entry)
0 4320
1 40320
2 210240
3 604800
4 1814400
5 3467520
6 7862400
7 13080960
8 24494400
9 35164800
10 64753920
11 82293120
12 135233280
13 177811200
14 269625600
15 320785920
16 500346720
17 563068800
18 838857600
19 970905600
20 1329229440
21 1477681920
22 2170022400
23 2268144000
24 3085992000