# A152363 (b-file synthesized from sequence entry)
1 1
2 2
3 6
4 24
5 120
6 720
7 4704
8 34440
9 277248
10 2432592
11 24309224
12 260433682
13 3042046372
14 37591396676
15 495967203570
16 7110282029252