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A074633 as a simple table

na(n)
12
24
38
412
518
627
737
851
968
1089
11116
12147
13186
14232
15287
16352
17428
18518
19623
20745
21887
221050
231240
241456
251704
261987
272309
282674
293090
303557
314087
324684
335353
346105
356949
367892
378944
3810121
3911431
4012885
4114502
4216298
4318286
4420485
4522917
4625607

[2,4,8,12,18,27,37,51,68,89,116,147,186,232,287,
 352,428,518,623,745,887,1050,1240,1456,1704,1987,
 2309,2674,3090,3557,4087,4684,5353,6105,6949,7892,
 8944,10121,11431,12885,14502,16298,18286,20485,
 22917,25607]