# A365340 (b-file synthesized from sequence entry)
0 1
1 1
2 8
3 132
4 3360
5 116280
6 5100480
7 271252800
8 16963914240
9 1220096908800
10 99225500774400
11 9003984596006400
12 901928094049382400
13 98856066097780992000
14 11768525894839633920000
15 1512185803617951221760000
16 208598907329474462760960000