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A189424 as a simple table

na(n)
01
11
24
30
444
5-220
62056
7-19544
8213216
9-2571552
1034036224
11-489916416
127614555648
13-127028029440
142262903109632
15-42857715985920
16859647858427392
17-18200106158320128
18405498290896693248
19-9482120962982547456
20232156555727228971008

[1,1,4,0,44,-220,2056,-19544,213216,-2571552,
 34036224,-489916416,7614555648,-127028029440,
 2262903109632,-42857715985920,859647858427392,
 -18200106158320128,405498290896693248,
 -9482120962982547456,232156555727228971008]