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A074953 as a simple table

na(n)
15
29
315
424
536
651
766
887
9105
10123
11144
12165
13186
14195
15213
16234
17255
18276
19297
20330
21384
22426
23447
24492
25546
26585
27609
28630
29651
30735
31816
32825
33843
34870
35951
361026
371041
381056
391077
401122
411191
421254
431284
441296
451311
461374
471440

[5,9,15,24,36,51,66,87,105,123,144,165,186,195,
 213,234,255,276,297,330,384,426,447,492,546,585,
 609,630,651,735,816,825,843,870,951,1026,1041,
 1056,1077,1122,1191,1254,1284,1296,1311,1374,1440]