# A333639 (b-file synthesized from sequence entry)
1 1
2 6
3 672
4 1638
5 30240
6 32760
7 2178540
8 17428320
9 23569920
10 29410290
11 45532800
12 714954240
13 1379454720
14 14182439040
15 19209881600
16 30600708096
17 51001180160
18 57575890944
19 57629644800
20 153003540480
21 206166804480
22 403031236608
23 465036042240
24 482476262400