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A208599 as a simple table

na(n)
111
277
3291
4791
51761
63431
76077
810021
915631
1023321
1133551
1246827
1363701
1484771
15110681
16142121
17179827
18224581
19277211
20338591
21409641
22491327
23584661
24690701
25810551
26945361
271096327
281264691
291451741
301658811
311887281
322138577
332414171

[11,77,291,791,1761,3431,6077,10021,15631,23321,
 33551,46827,63701,84771,110681,142121,179827,
 224581,277211,338591,409641,491327,584661,690701,
 810551,945361,1096327,1264691,1451741,1658811,
 1887281,2138577,2414171]