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A140580 as a simple table

na(n)
11
24
39
48
525
66
749
816
927
1010
11121
1212
13169
1414
1515
1632
17289
1818
19361
2020
2121
2222
23529
2424
25125
2626
2781
2828
29841
3030
31961
3264
3333
3434
3535
3636
371369
3838
3939
4040
411681
4242
431849
4444
4545
4646
472209
4848
49343
5050
5151
5252
532809
5454
5555
5656
5757
5858
593481
6060
613721
6262
6363

[1,4,9,8,25,6,49,16,27,10,121,12,169,14,15,32,289,
 18,361,20,21,22,529,24,125,26,81,28,841,30,961,64,
 33,34,35,36,1369,38,39,40,1681,42,1849,44,45,46,
 2209,48,343,50,51,52,2809,54,55,56,57,58,3481,60,
 3721,62,63]