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A059993 as a simple table

na(n)
01
19
221
337
457
581
6109
7141
8177
9217
10261
11309
12361
13417
14477
15541
16609
17681
18757
19837
20921
211009
221101
231197
241297
251401
261509
271621
281737
291857
301981
312109
322241
332377
342517
352661
362809
372961
383117
393277
403441
413609
423781
433957
444137
454321
464509

[1,9,21,37,57,81,109,141,177,217,261,309,361,417,
 477,541,609,681,757,837,921,1009,1101,1197,1297,
 1401,1509,1621,1737,1857,1981,2109,2241,2377,2517,
 2661,2809,2961,3117,3277,3441,3609,3781,3957,4137,
 4321,4509]