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A127070 as a simple table

na(n)
01
14
210
3-24
4-420
5-960
622680
7201600
8-1496880
9-36288000
1064864800
117823692800
1225297272000
13-2092278988800
14-18988521552000
15690452066304000
1611457025515936000
17-277436193914880000
18-7430805000755136000
19133809610449715200000
205500591866494524800000
21-76432049488877322240000

[1,4,10,-24,-420,-960,22680,201600,-1496880,
 -36288000,64864800,7823692800,25297272000,
 -2092278988800,-18988521552000,690452066304000,
 11457025515936000,-277436193914880000,
 -7430805000755136000,133809610449715200000,
 5500591866494524800000,-76432049488877322240000]