# A319175 (b-file synthesized from sequence entry)
0 1
1 1
2 4
3 36
4 416
5 6000
6 106542
7 2242093
8 54399424
9 1495318752
10 45938780750
11 1559858659359
12 58007497143180
13 2344682328265823
14 102352889947823998
15 4798930456964580045
16 240518006611511552896
17 12832137350594892322464
18 726108032647676403262710
19 43434461707962856186584307