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A069148 as a simple table

na(n)
14
26
38
410
514
616
718
820
922
1026
1128
1234
1338
1442
1544
1646
1752
1858
1962
2066
2168
2274
2376
2478
2582
2686
2792
2894
29102
30106
31114
32116
33118
34122
35124
36134
37138
38142
39146
40148
41158
42164
43166
44172
45174
46178
47186
48188
49194
50202
51206
52212
53214
54218
55222
56226
57236
58244
59246

[4,6,8,10,14,16,18,20,22,26,28,34,38,42,44,46,52,
 58,62,66,68,74,76,78,82,86,92,94,102,106,114,116,
 118,122,124,134,138,142,146,148,158,164,166,172,
 174,178,186,188,194,202,206,212,214,218,222,226,
 236,244,246]