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A172181 as a simple table

na(n)
19
215
321
427
533
635
739
845
951
1057
1163
1265
1369
1475
1577
1681
1787
1893
1995
2099
21105
22111
23117
24119
25123
26125
27129
28135
29141
30143
31147
32153
33155
34159
35161
36165
37171
38177
39183
40185
41189
42195
43201
44203
45207
46209
47213
48215
49219
50221
51225
52231
53237
54243
55245
56249
57255

[9,15,21,27,33,35,39,45,51,57,63,65,69,75,77,81,
 87,93,95,99,105,111,117,119,123,125,129,135,141,
 143,147,153,155,159,161,165,171,177,183,185,189,
 195,201,203,207,209,213,215,219,221,225,231,237,
 243,245,249,255]