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A144248 as a simple table

na(n)
11
2-23
3229
4-1243
53587
6-2461
7-19205
865275
9-48368
10-164288
11370324
12-620
13-578358
14-176502
151040658
162027794
17-4878140
18-2150708
198510712
201400952
21-2818536
22-15649224
232994048
2424283008
25-1216217
2612649495
27-60629585

[1,-23,229,-1243,3587,-2461,-19205,65275,-48368,
 -164288,370324,-620,-578358,-176502,1040658,
 2027794,-4878140,-2150708,8510712,1400952,
 -2818536,-15649224,2994048,24283008,-1216217,
 12649495,-60629585]