login

A012127 as a simple table

na(n)
01
10
2-4
380
4-2224
588960
6-4942144
7366928640
8-35219691264
94251941253120
10-631113275843584
11113005305852006400
12-24021321751206703104
135979261710118927892480

[1,0,-4,80,-2224,88960,-4942144,366928640,
 -35219691264,4251941253120,-631113275843584,
 113005305852006400,-24021321751206703104,
 5979261710118927892480]