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A248356 as a simple table

na(n)
15
28
310
412
514
615
717
818
920
1022
1123
1225
1326
1427
1529
1630
1732
1833
1935
2036
2137
2239
2340
2441
2543
2644
2745
2847
2948
3049
3150
3252
3353
3454
3556
3657
3758
3859
3961
4062
4163
4264
4366
4467
4568
4669
4771
4872
4973
5074
5176
5277
5378
5479
5580
5682
5783
5884
5985
6086
6188
6289
6390
6491
6592

[5,8,10,12,14,15,17,18,20,22,23,25,26,27,29,30,32,
 33,35,36,37,39,40,41,43,44,45,47,48,49,50,52,53,
 54,56,57,58,59,61,62,63,64,66,67,68,69,71,72,73,
 74,76,77,78,79,80,82,83,84,85,86,88,89,90,91,92]