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A278032 as a simple table

na(n)
13
21
35
46
515
69
723
810
927
1063
1112
1295
1329
1417
1530
16111
17119
1818
19123
2039
2120
22125
2343
24126
25255
2645
2724
2846
2933
3051
3116383
3253
33159
3434
351023
3636
37175
38183
3954
40187
41189
4240
431535
4448
4557
4665
474095
486143
4958
5066
5160
52190
5368
541791
55207
56215
57219
5872
59221
6071

[3,1,5,6,15,9,23,10,27,63,12,95,29,17,30,111,119,
 18,123,39,20,125,43,126,255,45,24,46,33,51,16383,
 53,159,34,1023,36,175,183,54,187,189,40,1535,48,
 57,65,4095,6143,58,66,60,190,68,1791,207,215,219,
 72,221,71]