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A133581 as a simple table

na(n)
18
216
354
4112
5396
6512
71008
81155
91794
103312
113520
125488
136776
147020
158405
1611180
1714384
1814720
1918241
2020339
2120709
2224769
2327094
2431648
2538994
2641890
2742336
2845318
2945825
3048852
3166234
3269874
3376857
3477441
3591719
3692323
37100215
38108376
39112896
40121539

[8,16,54,112,396,512,1008,1155,1794,3312,3520,
 5488,6776,7020,8405,11180,14384,14720,18241,20339,
 20709,24769,27094,31648,38994,41890,42336,45318,
 45825,48852,66234,69874,76857,77441,91719,92323,
 100215,108376,112896,121539]