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A116880 as a simple table

na(n)
01
11
23
33
47
513
613
729
841
967
1067
11147
12195
13247
14381
15381
16829
171069
181277
191545
202307
212307
224995
236339
247379
258451
269975
2714589
2814589
2931485
3039549
3145373
3250733
3356829
3466057
3595235
3695235
37205059
38255747
39290691
40320707
41351187
42388099
43446455

[1,1,3,3,7,13,13,29,41,67,67,147,195,247,381,381,
 829,1069,1277,1545,2307,2307,4995,6339,7379,8451,
 9975,14589,14589,31485,39549,45373,50733,56829,
 66057,95235,95235,205059,255747,290691,320707,
 351187,388099,446455]