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A154939 as a simple table

na(n)
13
25
311
431
5101
6131
7149
8181
9241
10331
11419
12449
13709
141051
151061
161171
171409
181549
191579
201699
211759
221831
232069
243229
253449
263761
273911
284159
294951
305821
316029
326481
336661
346679
356899
367079
377151
387229
397369
408101
418219
428629
438861
449091
459161
469521

[3,5,11,31,101,131,149,181,241,331,419,449,709,
 1051,1061,1171,1409,1549,1579,1699,1759,1831,2069,
 3229,3449,3761,3911,4159,4951,5821,6029,6481,6661,
 6679,6899,7079,7151,7229,7369,8101,8219,8629,8861,
 9091,9161,9521]