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A268525 as a simple table

na(n)
11
25
313
425
541
665
789
8125
9157
10205
11253
12325
13373
14445
15517
16625
17689
18785
19881
201025
211121
221265
231409
241625
251721
261865
272009
282225
292369
302585
312801
323125
333253
343445
353637
363925
374117
384405
394693
405125
415317
425605
435893
446325
456613
467045
477477
488125
498317
508605
518893
529325
539613
5410045

[1,5,13,25,41,65,89,125,157,205,253,325,373,445,
 517,625,689,785,881,1025,1121,1265,1409,1625,1721,
 1865,2009,2225,2369,2585,2801,3125,3253,3445,3637,
 3925,4117,4405,4693,5125,5317,5605,5893,6325,6613,
 7045,7477,8125,8317,8605,8893,9325,9613,10045]