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A280469 as a simple table

na(n)
14
26
312
418
530
634
742
856
960
1072
1186
1292
1394
14102
15108
16138
17142
18144
19150
20160
21180
22184
23186
24192
25198
26202
27204
28214
29216
30218
31220
32228
33236
34240
35248
36266
37270
38282
39300
40302
41304
42312
43320
44322
45328
46340
47348
48392
49394
50412
51414
52416
53420
54432
55446

[4,6,12,18,30,34,42,56,60,72,86,92,94,102,108,138,
 142,144,150,160,180,184,186,192,198,202,204,214,
 216,218,220,228,236,240,248,266,270,282,300,302,
 304,312,320,322,328,340,348,392,394,412,414,416,
 420,432,446]