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A257404 as a simple table

na(n)
18
218
324
450
581
698
7160
8242
9338
10375
11578
12722
13896
141029
151058
161215
171682
181922
192738
203362
213698
223993
234418
245618
256591
266962
277442
288978
2910082
3010658
3112482
3213778
3314739
3415309
3515625
3615842
3718818

[8,18,24,50,81,98,160,242,338,375,578,722,896,
 1029,1058,1215,1682,1922,2738,3362,3698,3993,4418,
 5618,6591,6962,7442,8978,10082,10658,12482,13778,
 14739,15309,15625,15842,18818]