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A213491 as a simple table

na(n)
01
18
227
364
4125
5204
6305
7420
8569
9714
10909
111096
121327
131550
141833
152086
162411
172706
183071
193402
203815
214176
224635
235038
245533
255972
266519
276988
287577
298088
308717
319264
329941
3310518
3411241
3511860
3612619
3713274
3814085
3914770
4015623

[1,8,27,64,125,204,305,420,569,714,909,1096,1327,
 1550,1833,2086,2411,2706,3071,3402,3815,4176,4635,
 5038,5533,5972,6519,6988,7577,8088,8717,9264,9941,
 10518,11241,11860,12619,13274,14085,14770,15623]