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A128490 as a simple table

na(n)
15
27
317
419
555
671
7109
8111
9161
10191
11379
12415
13449
14505
15521
16681
17881
18961
191025
201079
211189
221231
231639
241799
252071
262449
272591
282755
292991
303079
313457
323499
333921
343951
354159
364265
374815
385161
395201
405831
416049
426425
436805
449281
459505
469521
4710751

[5,7,17,19,55,71,109,111,161,191,379,415,449,505,
 521,681,881,961,1025,1079,1189,1231,1639,1799,
 2071,2449,2591,2755,2991,3079,3457,3499,3921,3951,
 4159,4265,4815,5161,5201,5831,6049,6425,6805,9281,
 9505,9521,10751]