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A028873 as a simple table

na(n)
14
28
310
414
520
626
732
834
940
1044
1146
1258
1364
1468
1580
1686
1788
1892
1998
20110
21112
22118
23124
24128
25136
26140
27142
28146
29164
30172
31190
32194
33202
34206
35208
36218
37220
38250
39254
40266
41268
42296
43298
44304
45310
46320
47322
48326
49328
50332
51340
52350
53356
54362
55370
56416
57418

[4,8,10,14,20,26,32,34,40,44,46,58,64,68,80,86,88,
 92,98,110,112,118,124,128,136,140,142,146,164,172,
 190,194,202,206,208,218,220,250,254,266,268,296,
 298,304,310,320,322,326,328,332,340,350,356,362,
 370,416,418]