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A028884 as a simple table

na(n)
01
18
217
328
441
556
673
792
8113
9136
10161
11188
12217
13248
14281
15316
16353
17392
18433
19476
20521
21568
22617
23668
24721
25776
26833
27892
28953
291016
301081
311148
321217
331288
341361
351436
361513
371592
381673
391756
401841
411928
422017
432108
442201
452296
462393

[1,8,17,28,41,56,73,92,113,136,161,188,217,248,
 281,316,353,392,433,476,521,568,617,668,721,776,
 833,892,953,1016,1081,1148,1217,1288,1361,1436,
 1513,1592,1673,1756,1841,1928,2017,2108,2201,2296,
 2393]