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A289699 as a simple table

na(n)
111
213
315
419
533
635
739
859
963
1075
11105
12143
13187
14213
15271
16307
17431
18549
191211
201597
211879
222025
233085
245995
255997
266697
276795
2810543
2921515
3025811
3134345
3257561
3370797
3471671

[11,13,15,19,33,35,39,59,63,75,105,143,187,213,
 271,307,431,549,1211,1597,1879,2025,3085,5995,
 5997,6697,6795,10543,21515,25811,34345,57561,
 70797,71671]