# A354333 (b-file synthesized from sequence entry)
0 1
1 6
2 120
3 5040
4 362880
5 39916800
6 249080832
7 1307674368000
8 27360571392000
9 121645100408832000
10 51090942171709440000
11 5170403347776995328000
12 15511210043330985984000000
13 10888869450418352160768000000
14 8841761993739701954543616000000
15 432780981798838043038187520000000