login

A357661 as a simple table

na(n)
01
10
22
312
460
5320
62040
715568
8133648
91230336
1011962400
11123144384
121349008320
1315731096576
14194349866880
152527082917120
1634392647418112
17488243791183872
187216792525799936
19110936087161801728
201771199461131500544
2129324602146652307456

[1,0,2,12,60,320,2040,15568,133648,1230336,
 11962400,123144384,1349008320,15731096576,
 194349866880,2527082917120,34392647418112,
 488243791183872,7216792525799936,
 110936087161801728,1771199461131500544,
 29324602146652307456]