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A046843 as a simple table

na(n)
12
24
38
412
516
640
780
8314
9478
10604
11634
12790
13868
141264
151376
162536
173544
186564
197268
207780
218366
2215010
2316636
2418672
2527084
2629954
2751968
2860940
2967044

[2,4,8,12,16,40,80,314,478,604,634,790,868,1264,
 1376,2536,3544,6564,7268,7780,8366,15010,16636,
 18672,27084,29954,51968,60940,67044]