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A189499 as a simple table

na(n)
14
212
338
478
5148
6240
7380
8554
9788
101062
111410
121806
132294
142844
153498
164226
175068
185988
197040
208180
219466
2210850
2312396
2414046
2515876
2617824
2719960
2822226
2924696
3027296
3130118
3233090
3336288
3439642
3543242
3647002
3751022
3855220
3959690
4064346
4169294

[4,12,38,78,148,240,380,554,788,1062,1410,1806,
 2294,2844,3498,4226,5068,5988,7040,8180,9466,
 10850,12396,14046,15876,17824,19960,22226,24696,
 27296,30118,33090,36288,39642,43242,47002,51022,
 55220,59690,64346,69294]