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A124676 as a simple table

na(n)
21
32
42
54
62
76
86
96
104
1110
126
1312
146
153
1614
1716
1812
1918
2010
216
2210
2322
2418
2520
2612
2724
2814
2928
302
3130
3230
339
3416
355
3630
3736
3818
3912
4030
4140
426
4342
4422
4530
4622
4746
4842
4942
5040
5115
5226
5352
5448
5510
5642
5718
5828
5958
6030
6160
6230
6342
6462
6510
666
6766
6834
6921
704
7170
7266
7372
7436
7560
7638
777
7812

[1,2,2,4,2,6,6,6,4,10,6,12,6,3,14,16,12,18,10,6,
 10,22,18,20,12,24,14,28,2,30,30,9,16,5,30,36,18,
 12,30,40,6,42,22,30,22,46,42,42,40,15,26,52,48,10,
 42,18,28,58,30,60,30,42,62,10,6,66,34,21,4,70,66,
 72,36,60,38,7,12]