# A124104 (b-file synthesized from sequence entry)
1 0
2 2
3 36
4 600
5 11100
6 235560
7 5746524
8 160252456
9 5069446560
10 180479494440
11 7177165063750
12 316636751823480
13 15401586272510880
14 821382267765103590
15 47788292465454829260
16 3019446671476746981600
17 206339807951889894605488