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A115557 as a simple table

na(n)
11
249
3121
4169
5361
6529
7841
8961
91849
102209
112809
125329
136889
149409
1510609
1612769
1716129
1824649
1932041
2038809
2139601
2249729
2351529
2454289
2557121
2658081
2763001
2866049
2973441
3078961
3196721
3299856
33100489
34110889
35124609
36151321
37160801

[1,49,121,169,361,529,841,961,1849,2209,2809,5329,
 6889,9409,10609,12769,16129,24649,32041,38809,
 39601,49729,51529,54289,57121,58081,63001,66049,
 73441,78961,96721,99856,100489,110889,124609,
 151321,160801]