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A053676 as a simple table

na(n)
17
241
3465
42732
53005
620648
748125
894396
9129299
10282931
11789281
12835050
131241217
141292143
151521647
161603655
172756953
184847702
195128447
206242598

[7,41,465,2732,3005,20648,48125,94396,129299,
 282931,789281,835050,1241217,1292143,1521647,
 1603655,2756953,4847702,5128447,6242598]