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A087691 as a simple table

na(n)
19
249
3121
4361
5529
6961
71849
82209
93481
104489
115041
126241
136889
1410609
1511449
1616129
1717161
1819321
1922801
2026569
2127889
2232041
2336481
2439601
2544521
2649729
2751529
2857121
2963001
3069169
3173441
3280089
3394249
3496721
35109561
36120409
37128881

[9,49,121,361,529,961,1849,2209,3481,4489,5041,
 6241,6889,10609,11449,16129,17161,19321,22801,
 26569,27889,32041,36481,39601,44521,49729,51529,
 57121,63001,69169,73441,80089,94249,96721,109561,
 120409,128881]