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A031490 as a simple table

na(n)
17
215
323
431
539
647
755
857
958
1059
1160
1261
1362
1479
1587
1695
17103
18111
19119
20121
21122
22123
23124
24125
25126
26143
27151
28159
29167
30175
31183
32185
33186
34187
35188
36189
37190
38207
39215
40223
41231
42239
43247
44249
45250
46251
47252
48253
49254
50271

[7,15,23,31,39,47,55,57,58,59,60,61,62,79,87,95,
 103,111,119,121,122,123,124,125,126,143,151,159,
 167,175,183,185,186,187,188,189,190,207,215,223,
 231,239,247,249,250,251,252,253,254,271]