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A224216 as a simple table

na(n)
11
2-1
3-2
43
54
6-6
7-8
811
915
10-20
11-26
1234
1344
14-56
15-72
1691
17114
18-143
19-178
20220
21272
22-334
23-408
24498
25605
26-732
27-884
281064
291276
30-1528
31-1824
322171
332580
34-3058
35-3616
364269
375028
38-5910
39-6936
408124
419498
42-11088
43-12922
4415034
4517468
46-20264

[1,-1,-2,3,4,-6,-8,11,15,-20,-26,34,44,-56,-72,91,
 114,-143,-178,220,272,-334,-408,498,605,-732,-884,
 1064,1276,-1528,-1824,2171,2580,-3058,-3616,4269,
 5028,-5910,-6936,8124,9498,-11088,-12922,15034,
 17468,-20264]