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A257836 as a simple table

na(n)
115
235
363
499
5105
6143
7195
8255
9315
10323
11399
12483
13575
14675
15693
16783
17899
18945
191023
201155
211287
221295
231443
241599
251763
261935
272115
282145
292303
302499
312703
322915
333135
343315
353363
363465
373599
383843
394095
404355
414623
424845
434899
445183
455475
465775
476083

[15,35,63,99,105,143,195,255,315,323,399,483,575,
 675,693,783,899,945,1023,1155,1287,1295,1443,1599,
 1763,1935,2115,2145,2303,2499,2703,2915,3135,3315,
 3363,3465,3599,3843,4095,4355,4623,4845,4899,5183,
 5475,5775,6083]