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A272048 as a simple table

na(n)
04
18
215
3-3
476
5-45
6113
7-73
8169
9-128
10204
11-200
12412
13-320
14504
15-404
16524
17-504
18704
19-628
20924
21-869
221101
23-969
241225
25-1148
261368
27-1308
281796
29-1660
302028
31-1784
322008
33-2004
342360
35-2180
362700
37-2648
383184
39-2892
403108
41-3112
423620
43-3424
443976

[4,8,15,-3,76,-45,113,-73,169,-128,204,-200,412,
 -320,504,-404,524,-504,704,-628,924,-869,1101,
 -969,1225,-1148,1368,-1308,1796,-1660,2028,-1784,
 2008,-2004,2360,-2180,2700,-2648,3184,-2892,3108,
 -3112,3620,-3424,3976]