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A269429 as a simple table

na(n)
00
1-1
28
3-22
448
5-87
6144
7-220
8320
9-445
10600
11-786
121008
13-1267
141568
15-1912
162304
17-2745
183240
19-3790
204400
21-5071
225808
23-6612
247488
25-8437
269464
27-10570
2811760
29-13035
3014400
31-15856
3217408
33-19057
3420808
35-22662
3624624
37-26695
3828880
39-31180
4033600

[0,-1,8,-22,48,-87,144,-220,320,-445,600,-786,
 1008,-1267,1568,-1912,2304,-2745,3240,-3790,4400,
 -5071,5808,-6612,7488,-8437,9464,-10570,11760,
 -13035,14400,-15856,17408,-19057,20808,-22662,
 24624,-26695,28880,-31180,33600]