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A074902 as a simple table

na(n)
16
212
324
428
530
640
742
856
960
1066
1178
1280
1384
1496
15102
16108
17114
18120
19132
20135
21138
22140
23150
24168
25174
26186
27200
28204
29210
30222
31224
32228
33234
34240
35246
36252
37258
38264
39270
40273
41276
42280
43282
44294
45300
46308
47312
48318
49330
50348
51354
52360
53364
54366
55372

[6,12,24,28,30,40,42,56,60,66,78,80,84,96,102,108,
 114,120,132,135,138,140,150,168,174,186,200,204,
 210,222,224,228,234,240,246,252,258,264,270,273,
 276,280,282,294,300,308,312,318,330,348,354,360,
 364,366,372]