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A272513 as a simple table

na(n)
03
19
219
31
467
5-35
695
7-63
8203
9-155
10231
11-199
12403
13-323
14455
15-367
16643
17-555
18679
19-647
20995
21-859
221087
23-943
241355
25-1203
261415
27-1415
281875
29-1691
301967
31-1767
322331
33-2131
342439
35-2415
362995
37-2683
383031
39-2855
403587
41-3371
423783
43-3591
444227

[3,9,19,1,67,-35,95,-63,203,-155,231,-199,403,
 -323,455,-367,643,-555,679,-647,995,-859,1087,
 -943,1355,-1203,1415,-1415,1875,-1691,1967,-1767,
 2331,-2131,2439,-2415,2995,-2683,3031,-2855,3587,
 -3371,3783,-3591,4227]