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A176608 as a simple table

na(n)
15
289
3281
41321
52129
62861
73701
84649
96469
106869
119049
129521
1310501
1413729
1517389
1618041
1719381
1821481
1923689
2026801
2128429
2233601
2342169
2471069
2575041
2681901
2786161
2890529
2992009
30101141
31104281
32113989
33129361
34131129
35153281
36157141
37163021
38169009
39171029
40200569
41209441
42213949
43259169
44274349
45282101
46314189
47339389
48371509
49374501
50383549
51417649

[5,89,281,1321,2129,2861,3701,4649,6469,6869,9049,
 9521,10501,13729,17389,18041,19381,21481,23689,
 26801,28429,33601,42169,71069,75041,81901,86161,
 90529,92009,101141,104281,113989,129361,131129,
 153281,157141,163021,169009,171029,200569,209441,
 213949,259169,274349,282101,314189,339389,371509,
 374501,383549,417649]