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A118638 as a simple table

na(n)
111
229
3137
4191
5461
6659
7821
81091
91721
102027
112081
122711
133359
143539
153917
166131
176761
187589
197877
207949
218219
229461
239857
2411351
2512107
2612377
2713691
2813997
2914447
3016139
3116229
3217291
3317417
3417579
3518911
3619469
3719541
3819991
3920549
4020639
4120747
4220981

[11,29,137,191,461,659,821,1091,1721,2027,2081,
 2711,3359,3539,3917,6131,6761,7589,7877,7949,8219,
 9461,9857,11351,12107,12377,13691,13997,14447,
 16139,16229,17291,17417,17579,18911,19469,19541,
 19991,20549,20639,20747,20981]