# A092420 (b-file synthesized from sequence entry)
1 1
2 10
3 90
4 801
5 7120
6 63280
7 562401
8 4998330
9 44422570
10 394804801
11 3508820640
12 31184580960
13 277152408001
14 2463187091050
15 21891531411450
16 194560595612001
17 1729153829096560
18 15367823866257040
19 136581260967216801