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A235462 as a simple table

na(n)
15
231
3131
4151
5631
63251
73881
819531
978781
1078901
1181281
1281401
1381901
1482031
1594531
1697001
1797501
18390781
19394501
20406381
21469501
22471901
23472631
24484531
251953901
261956881
271968751
281969531
291971901
302031251
312035151
322046901
332047651
342050031
352347001
362360131

[5,31,131,151,631,3251,3881,19531,78781,78901,
 81281,81401,81901,82031,94531,97001,97501,390781,
 394501,406381,469501,471901,472631,484531,1953901,
 1956881,1968751,1969531,1971901,2031251,2035151,
 2046901,2047651,2050031,2347001,2360131]