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A218852 as a simple table

na(n)
15
27
310
413
514
615
716
819
920
1021
1125
1226
1327
1428
1531
1632
1733
1834
1935
2038
2139
2240
2342
2443
2544
2645
2746
2849
2950
3051
3152
3254
3355
3456
3557
3658
3761
3862
3963
4064
4165
4266
4368
4469
4570
4673
4774
4875
4976
5077
5178
5280
5381
5482
5584
5685
5786
5887
5988
6090
6191
6292
6393
6494
6595
6696

[5,7,10,13,14,15,16,19,20,21,25,26,27,28,31,32,33,
 34,35,38,39,40,42,43,44,45,46,49,50,51,52,54,55,
 56,57,58,61,62,63,64,65,66,68,69,70,73,74,75,76,
 77,78,80,81,82,84,85,86,87,88,90,91,92,93,94,95,
 96]