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A214446 as a simple table

na(n)
1-2
2-2
36
428
570
6138
7238
8376
9558
10790
111078
121428
131846
142338
152910
163568
174318
185166
196118
207180
218358
229658
2311086
2412648
2514350
2616198
2718198
2820356
2922678
3025170
3127838
3230688
3333726
3436958
3540390
3644028
3747878

[-2,-2,6,28,70,138,238,376,558,790,1078,1428,1846,
 2338,2910,3568,4318,5166,6118,7180,8358,9658,
 11086,12648,14350,16198,18198,20356,22678,25170,
 27838,30688,33726,36958,40390,44028,47878]