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A275717 as a simple table

na(n)
12
23
34
46
58
612
714
815
916
1018
1120
1224
1326
1427
1530
1632
1735
1836
1938
2039
2140
2242
2344
2445
2548
2650
2752
2854
2956
3060
3162
3263
3364
3466
3568
3670
3772
3874
3975
4078
4180
4281
4384
4486
4587
4688
4790
4892
4995
5096
5198
52100
53102
54104
55108
56110
57112
58114
59116
60117
61119
62120
63122
64123
65124
66125
67126
68128
69130
70132
71135
72138
73140
74143
75144

[2,3,4,6,8,12,14,15,16,18,20,24,26,27,30,32,35,36,
 38,39,40,42,44,45,48,50,52,54,56,60,62,63,64,66,
 68,70,72,74,75,78,80,81,84,86,87,88,90,92,95,96,
 98,100,102,104,108,110,112,114,116,117,119,120,
 122,123,124,125,126,128,130,132,135,138,140,143,
 144]