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A258316 as a simple table

na(n)
15
27
37
410
59
610
715
812
912
1015
1123
1217
1315
1417
1523
1636
1725
1820
1920
2025
2136
2257
2338
2428
2525
2628
2738
2857
2991
3059
3141
3233
3333
3441
3559
3691
37146
3893
3962
4046
4141
4246
4362
4493
45146
46235
47148
4896
4967
5054
5154
5267
5396
54148
55235
56379
57237
58151
59101
6075
6167
6275
63101
64151
65237
66379
67612

[5,7,7,10,9,10,15,12,12,15,23,17,15,17,23,36,25,
 20,20,25,36,57,38,28,25,28,38,57,91,59,41,33,33,
 41,59,91,146,93,62,46,41,46,62,93,146,235,148,96,
 67,54,54,67,96,148,235,379,237,151,101,75,67,75,
 101,151,237,379,612]