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A014209 as a simple table

na(n)
0-1
13
29
317
427
539
653
769
887
9107
10129
11153
12179
13207
14237
15269
16303
17339
18377
19417
20459
21503
22549
23597
24647
25699
26753
27809
28867
29927
30989
311053
321119
331187
341257
351329
361403
371479
381557
391637
401719
411803
421889
431977
442067
452159
462253
472349
482447
492547
502649

[-1,3,9,17,27,39,53,69,87,107,129,153,179,207,237,
 269,303,339,377,417,459,503,549,597,647,699,753,
 809,867,927,989,1053,1119,1187,1257,1329,1403,
 1479,1557,1637,1719,1803,1889,1977,2067,2159,2253,
 2349,2447,2547,2649]