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A185212 as a simple table

na(n)
01
15
233
385
4161
5261
6385
7533
8705
9901
101121
111365
121633
131925
142241
152581
162945
173333
183745
194181
204641
215125
225633
236165
246721
257301
267905
278533
289185
299861
3010561
3111285
3212033
3312805
3413601
3514421
3615265
3716133
3817025
3917941
4018881
4119845
4220833

[1,5,33,85,161,261,385,533,705,901,1121,1365,1633,
 1925,2241,2581,2945,3333,3745,4181,4641,5125,5633,
 6165,6721,7301,7905,8533,9185,9861,10561,11285,
 12033,12805,13601,14421,15265,16133,17025,17941,
 18881,19845,20833]