# A323877 (b-file synthesized from sequence entry)
1 0
2 0
3 0
4 1
5 10
6 125
7 2275
8 64673
9 3102204
10 272277040
11 46202044900
12 15442093276764
13 10171924771814520
14 13188852179018387144
15 33674263441006260931040
16 169522275849148918884400912
17 1685048703908907788901122512512
18 33116110237646373502366665503208064
19 1288337109916947580133035603563656989952
20 99320901948403913391024993536094346775110656