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A121209 as a simple table

na(n)
1323
2767
310201
413231
515151
615251
719291
833233
937073
1038683
1173937
1274447
1390109
1492129
1592629
1696869
1799299
1899899
191115111
201475741
211726271
221840481
233068603
243114113
253185813
263405043
273462643
283539353
293567653
303585853

[323,767,10201,13231,15151,15251,19291,33233,
 37073,38683,73937,74447,90109,92129,92629,96869,
 99299,99899,1115111,1475741,1726271,1840481,
 3068603,3114113,3185813,3405043,3462643,3539353,
 3567653,3585853]