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A256393 as a simple table

na(n)
12
24
36
49
512
615
718
821
924
1027
1130
1235
1340
1445
1548
1651
1754
1857
1960
2065
2170
2277
2384
2491
2598
26105
27108
28111
29114
30133
31140
32147
33150
34155
35160
36165
37168
38175
39180
40185
41190
42209
43220
44231
45234
46247
47260
48273
49276
50299
51312
52325
53330
54341
55352
56363
57366
58427

[2,4,6,9,12,15,18,21,24,27,30,35,40,45,48,51,54,
 57,60,65,70,77,84,91,98,105,108,111,114,133,140,
 147,150,155,160,165,168,175,180,185,190,209,220,
 231,234,247,260,273,276,299,312,325,330,341,352,
 363,366,427]