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A069805 as a simple table

na(n)
12
23
35
49
56
68
78
810
912
1014
1112
1218
1314
1415
1521
1648
1718
1820
1920
2028
2122
2224
2324
2430
2528
2627
2730
2832
2930
3040
3132
3244
3334
3435
3538
36100
3738
3839
3940
4042
4142
4254
4344
4445
4550
4651
4748
4880
4950
5052
5154
5260
5354
5456
5556
5666
5758
5860
5960
6072
6162
6265
6368
64192
6566
6670
6768
6872
6970
7078
7172

[2,3,5,9,6,8,8,10,12,14,12,18,14,15,21,48,18,20,
 20,28,22,24,24,30,28,27,30,32,30,40,32,44,34,35,
 38,100,38,39,40,42,42,54,44,45,50,51,48,80,50,52,
 54,60,54,56,56,66,58,60,60,72,62,65,68,192,66,70,
 68,72,70,78,72]