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A022696 as a simple table

na(n)
01
1-4
22
30
427
5-36
614
7-104
8209
9-392
10670
11-728
122278
13-4444
144808
15-9800
1621750
17-35604
1851906
19-91120
20176285
21-290444
22455168
23-741336
241372544
25-2419348
263490310
27-5765744
2810788815
29-17086420
3026221946
31-44374160

[1,-4,2,0,27,-36,14,-104,209,-392,670,-728,2278,
 -4444,4808,-9800,21750,-35604,51906,-91120,176285,
 -290444,455168,-741336,1372544,-2419348,3490310,
 -5765744,10788815,-17086420,26221946,-44374160]