# A373759 (b-file synthesized from sequence entry)
0 1
1 0
2 0
3 0
4 1
5 15
6 180
7 2100
8 25235
9 319410
10 4299750
11 61815600
12 950524575
13 15633092475
14 274749725250
15 5151569172750
16 102831791687625
17 2179782464359500
18 48933251188321500
19 1160002995644493000
20 28956069155772383625
21 759014081927743516875