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A270421 as a simple table

na(n)
18
227
332
454
564
696
7125
8160
9192
10216
11224
12243
13250
14343
15375
16486
17500
18512
19686
20729
21864
22972
231000
241024
251029
261080
271215
281331
291372
301458
311536
321701
331715
341728
351944
362058
372197
382430
392560
402662
412673
422744
432916
443000
453072
463125
473159
483375
493402
503584
513645
523888
533993
544000
554096
564131
574320
584394

[8,27,32,54,64,96,125,160,192,216,224,243,250,343,
 375,486,500,512,686,729,864,972,1000,1024,1029,
 1080,1215,1331,1372,1458,1536,1701,1715,1728,1944,
 2058,2197,2430,2560,2662,2673,2744,2916,3000,3072,
 3125,3159,3375,3402,3584,3645,3888,3993,4000,4096,
 4131,4320,4394]