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A047510 as a simple table

na(n)
12
24
36
47
510
612
714
815
918
1020
1122
1223
1326
1428
1530
1631
1734
1836
1938
2039
2142
2244
2346
2447
2550
2652
2754
2855
2958
3060
3162
3263
3366
3468
3570
3671
3774
3876
3978
4079
4182
4284
4386
4487
4590
4692
4794
4895
4998
50100
51102
52103
53106
54108
55110
56111
57114
58116
59118
60119
61122
62124

[2,4,6,7,10,12,14,15,18,20,22,23,26,28,30,31,34,
 36,38,39,42,44,46,47,50,52,54,55,58,60,62,63,66,
 68,70,71,74,76,78,79,82,84,86,87,90,92,94,95,98,
 100,102,103,106,108,110,111,114,116,118,119,122,
 124]