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A311590 as a simple table

na(n)
01
14
28
312
418
522
626
730
834
940
1044
1146
1252
1358
1462
1566
1666
1774
1880
1984
2082
2192
2298
23102
24106
25102
26114
27120
28124
29118
30132
31138
32142
33146
34138
35154
36160
37164
38154
39172
40178
41182
42186
43174
44194
45200
46204
47190
48212
49218

[1,4,8,12,18,22,26,30,34,40,44,46,52,58,62,66,66,
 74,80,84,82,92,98,102,106,102,114,120,124,118,132,
 138,142,146,138,154,160,164,154,172,178,182,186,
 174,194,200,204,190,212,218]