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A277915 as a simple table

na(n)
18
27
312
411
59
615
729
822
913
1016
1123
1243
1325
1414
1520
1653
1746
1849
1931
2018
2121
22103
2379
2467
2558
2633
2719
2824
29191
30137
31106
3269
3371
3441
3521
3628
3747
38229
39206
40131
4189
4286
4344
4426
4530
4659
4794
48361
49239
50157
5192
5287
5350
5427
5532
56311
57118
58139
59382
60274
61158
62115
6398
6455
6528
6633

[8,7,12,11,9,15,29,22,13,16,23,43,25,14,20,53,46,
 49,31,18,21,103,79,67,58,33,19,24,191,137,106,69,
 71,41,21,28,47,229,206,131,89,86,44,26,30,59,94,
 361,239,157,92,87,50,27,32,311,118,139,382,274,
 158,115,98,55,28,33]