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A031170 as a simple table

na(n)
121
226
326
430
530
630
730
834
936
1032
1136
1234
1332
1436
1536
1636
1738
1840
1936
2036
2136
2234
2344
2442
2540
2638
2746
2844
2948
3050
3140
3242
3342
3442
3542
3642
3740
3836
3944
4050
4148
4248
4342
4446
4544
4652
4746
4840
4942
5042
5144
5242
5342
5442
5550
5648
5744
5846
5954
6056
6164
6256
6346
6448
6554
6656
6748

[21,26,26,30,30,30,30,34,36,32,36,34,32,36,36,36,
 38,40,36,36,36,34,44,42,40,38,46,44,48,50,40,42,
 42,42,42,42,40,36,44,50,48,48,42,46,44,52,46,40,
 42,42,44,42,42,42,50,48,44,46,54,56,64,56,46,48,
 54,56,48]