# A352313 (b-file synthesized from sequence entry)
0 0
1 2
2 6
3 80
4 2310
5 114912
6 8741040
7 943113600
8 136984998150
9 25771171025600
10 6096112602836256
11 1770904261963549440
12 619781244413394663600
13 257206839532730597664000
14 124885627021632853758096000
15 70139282938382254349182510080
16 45116676897361263845107791884550