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A280892 as a simple table

na(n)
14
212
316
418
520
632
736
840
952
1054
1156
1260
1368
1472
1584
1688
1790
1892
1996
20104
21108
22112
23128
24132
25140
26144
27150
28156
29160
30162
31164
32180
33184
34192
35196
36198
37200
38204
39212
40216
41220
42228
43232
44234
45236
46240
47248
48250
49252
50256
51264
52268
53270
54272
55284
56292
57294
58300
59304
60306
61308
62312

[4,12,16,18,20,32,36,40,52,54,56,60,68,72,84,88,
 90,92,96,104,108,112,128,132,140,144,150,156,160,
 162,164,180,184,192,196,198,200,204,212,216,220,
 228,232,234,236,240,248,250,252,256,264,268,270,
 272,284,292,294,300,304,306,308,312]