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A301681 as a simple table

na(n)
01
15
214
329
449
575
6107
7143
8183
9229
10281
11337
12399
13467
14539
15615
16697
17785
18877
19975
201079
211187
221299
231417
241541
251669
261803
271943
282087
292235
302389
312549
322713
332883
343059
353239
363423
373613
383809
394009
404215
414427
424643
434863
445089
455321
465557
475799
486047
496299
506555
516817
527085
537357
547635
557919
568207
578499
588797

[1,5,14,29,49,75,107,143,183,229,281,337,399,467,
 539,615,697,785,877,975,1079,1187,1299,1417,1541,
 1669,1803,1943,2087,2235,2389,2549,2713,2883,3059,
 3239,3423,3613,3809,4009,4215,4427,4643,4863,5089,
 5321,5557,5799,6047,6299,6555,6817,7085,7357,7635,
 7919,8207,8499,8797]