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A306408 as a simple table

na(n)
11
21
32
41
54
62
76
81
95
104
1110
122
1312
146
158
161
1716
185
1918
204
2112
2210
2322
242
2519
2612
2714
286
2928
308
3130
321
3320
3416
3524
365
3736
3818
3924
404
4140
4212
4342
4410
4520
4622
4746
482
4941
5019
5132
5212
5352
5414
5540
566
5736
5828
5958
608
6160
6230
6330
641
6548
6620
6766
6816
6944
7024
7170
725
7372

[1,1,2,1,4,2,6,1,5,4,10,2,12,6,8,1,16,5,18,4,12,
 10,22,2,19,12,14,6,28,8,30,1,20,16,24,5,36,18,24,
 4,40,12,42,10,20,22,46,2,41,19,32,12,52,14,40,6,
 36,28,58,8,60,30,30,1,48,20,66,16,44,24,70,5,72]