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A247834 as a simple table

na(n)
18
245
3125
4343
5325
6833
71331
81573
92197
102057
113211
123289
134913
144901
156859
166647
178303
1810051
1910469
2011191
2112167
2215341
2316399
2417081
2518259
2622103
2724389
2826071
2929791
3027347
3131117
3235557
3336163
3436859
3539401
3642439
3750653
3850933
3952111
4056129
4156699

[8,45,125,343,325,833,1331,1573,2197,2057,3211,
 3289,4913,4901,6859,6647,8303,10051,10469,11191,
 12167,15341,16399,17081,18259,22103,24389,26071,
 29791,27347,31117,35557,36163,36859,39401,42439,
 50653,50933,52111,56129,56699]