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A020156 as a simple table

na(n)
19
227
345
487
5145
6261
7361
8529
9561
10703
11783
12785
131105
141305
151413
161431
171885
182041
192413
202465
212871
223201
233277
244553
254699
265149
275181
285365
297065
308149
318321
328401
339841
3410027
3510585
3612673
3713333
3813345
3913357
4013833
4114383
4214769
4314981

[9,27,45,87,145,261,361,529,561,703,783,785,1105,
 1305,1413,1431,1885,2041,2413,2465,2871,3201,3277,
 4553,4699,5149,5181,5365,7065,8149,8321,8401,9841,
 10027,10585,12673,13333,13345,13357,13833,14383,
 14769,14981]