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A126887 as a simple table

na(n)
15
213
317
425
526
629
743
850
958
1061
1165
1267
1373
1477
1585
1686
1793
18101
19103
20109
21111
22116
23122
24130
25133
26134
27137
28145
29146
30149
31155
32163
33170
34172
35173
36181
37183
38186
39193
40197
41202
42206
43218
44233
45235
46237
47241
48245
49259
50260
51266
52267
53268
54273
55277
56281

[5,13,17,25,26,29,43,50,58,61,65,67,73,77,85,86,
 93,101,103,109,111,116,122,130,133,134,137,145,
 146,149,155,163,170,172,173,181,183,186,193,197,
 202,206,218,233,235,237,241,245,259,260,266,267,
 268,273,277,281]