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A056220 as a simple table

na(n)
0-1
11
27
317
431
549
671
797
8127
9161
10199
11241
12287
13337
14391
15449
16511
17577
18647
19721
20799
21881
22967
231057
241151
251249
261351
271457
281567
291681
301799
311921
322047
332177
342311
352449
362591
372737
382887
393041
403199
413361
423527
433697
443871
454049
464231
474417
484607
494801

[-1,1,7,17,31,49,71,97,127,161,199,241,287,337,
 391,449,511,577,647,721,799,881,967,1057,1151,
 1249,1351,1457,1567,1681,1799,1921,2047,2177,2311,
 2449,2591,2737,2887,3041,3199,3361,3527,3697,3871,
 4049,4231,4417,4607,4801]