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A208853 as a simple table

na(n)
15
213
317
429
525
637
753
841
90
1065
1185
1265
1361
1473
15101
16125
1797
1885
1989
20109
21145
22173
23137
240
25113
260
270
28197
29229
30185
31157
32145
33149
34169
35205
36257
37293
38241
39205
40185
41181
42193
43221
44265
45325
46365
47305
480
49233
50221
510

[5,13,17,29,25,37,53,41,0,65,85,65,61,73,101,125,
 97,85,89,109,145,173,137,0,113,0,0,197,229,185,
 157,145,149,169,205,257,293,241,205,185,181,193,
 221,265,325,365,305,0,233,221,0]