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A299644 as a simple table

na(n)
18
216
328
448
572
6100
7126
8150
9192
10236
11284
12336
13370
14402
15452
16518
17560
18614
19684
20720
21768
22832
23892
24970
251056
261110
271150
281186
291216
301326
311448
321512
331570
341656
351736
361796
371886
381958
392022
402094
412150
422240
432324
442372
452418
462514
472706
482842
492880
502918

[8,16,28,48,72,100,126,150,192,236,284,336,370,
 402,452,518,560,614,684,720,768,832,892,970,1056,
 1110,1150,1186,1216,1326,1448,1512,1570,1656,1736,
 1796,1886,1958,2022,2094,2150,2240,2324,2372,2418,
 2514,2706,2842,2880,2918]