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A074981 as a simple table

na(n)
16
214
334
442
550
658
762
866
970
1078
1182
1286
1390
14102
15110
16114
17130
18134
19158
20178
21182
22202
23206
24210
25226
26230
27238
28246
29254
30258
31266
32274
33278
34290
35302
36306
37310
38314
39322
40326
41330
42358
43374
44378
45390
46394
47398
48402
49410
50418
51422
52426

[6,14,34,42,50,58,62,66,70,78,82,86,90,102,110,
 114,130,134,158,178,182,202,206,210,226,230,238,
 246,254,258,266,274,278,290,302,306,310,314,322,
 326,330,358,374,378,390,394,398,402,410,418,422,
 426]