# A347022 (b-file synthesized from sequence entry)
0 1
1 1
2 5
3 50
4 720
5 13650
6 320370
7 8967720
8 291538080
9 10795026840
10 448484788680
11 20658543923280
12 1044915105622800
13 57572197848878400
14 3432143603792520000
15 220109018869587398400
16 15110184224165199667200
17 1105545474191480800492800
18 85881534014930659599571200