# A060942 (b-file synthesized from sequence entry)
1 2
2 12
3 420
4 27720
5 720720
6 12252240
7 5354228880
8 80313433200
9 2329089562800
10 5342931457063200
11 219060189739591200
12 9419588158802421600
13 3099044504245996706400
14 9690712164777231700912800
15 1182266884102822267511361600
16 79211881234889091923261227200