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A073361 as a simple table

na(n)
11
25
315
431
565
6105
7151
8275
9420
10631
11695
121050
131411
141685
152385
162941
173425
184410
195326
206995
217350
229316
2310880

[1,5,15,31,65,105,151,275,420,631,695,1050,1411,
 1685,2385,2941,3425,4410,5326,6995,7350,9316,
 10880]