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A020144 as a simple table

na(n)
115
251
385
491
5255
6341
7435
8451
9561
10595
11645
12703
131105
141247
151261
161271
171285
181387
191581
201687
211695
221729
231891
241905
252047
262071
272091
282431
292465
302701
312821
323133
333277
343367
353655
363683
374033
384369
394371
404681
414795
424859
435083
445151
455461

[15,51,85,91,255,341,435,451,561,595,645,703,1105,
 1247,1261,1271,1285,1387,1581,1687,1695,1729,1891,
 1905,2047,2071,2091,2431,2465,2701,2821,3133,3277,
 3367,3655,3683,4033,4369,4371,4681,4795,4859,5083,
 5151,5461]