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A273485 as a simple table

na(n)
04
10
212
3-8
420
5-8
644
7-40
852
9-40
1076
11-56
1284
13-72
14156
15-136
16164
17-152
18204
19-184
20212
21-200
22284
23-248
24308
25-272
26364
27-312
28452
29-400
30588
31-536
32484
33-512
34668
35-624
36612
37-608
38700
39-696
40692
41-616
42668
43-664
44884
45-840
461100
47-1008
481012
49-960

[4,0,12,-8,20,-8,44,-40,52,-40,76,-56,84,-72,156,
 -136,164,-152,204,-184,212,-200,284,-248,308,-272,
 364,-312,452,-400,588,-536,484,-512,668,-624,612,
 -608,700,-696,692,-616,668,-664,884,-840,1100,
 -1008,1012,-960]