# A076233 (b-file synthesized from sequence entry)
1 1
2 6
3 120
4 496
5 672
6 8128
7 30240
8 32760
9 523776
10 23569920
11 33550336
12 459818240
13 1379454720
14 1476304896
15 8589869056
16 31998395520
17 51001180160
18 66433720320