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A073847 as a simple table

na(n)
01
15
211
319
429
541
659
779
8101
9127
10157
11191
12227
13269
14313
15359
16409
17461
18521
19587
20659
21733
22809
23887
24967
251049
261151
271259
281373
291489
301607
311733
321861
331993
342129
352267
362411
372557
382707
392861
403019
413181
423347
433517
443691
453877
464073
474271
484481

[1,5,11,19,29,41,59,79,101,127,157,191,227,269,
 313,359,409,461,521,587,659,733,809,887,967,1049,
 1151,1259,1373,1489,1607,1733,1861,1993,2129,2267,
 2411,2557,2707,2861,3019,3181,3347,3517,3691,3877,
 4073,4271,4481]