# A058126 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 18
4 240
5 3100
6 46620
7 823494
8 16777152
9 387420408
10 9999999900
11 285311670490
12 8916100448112
13 302875106592084
14 11112006825557820
15 437893890380859150
16 18446744073709551360