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A260550 as a simple table

na(n)
11
215
375
4237
5559
61157
72055
83471
95449
108131
1111633
1216361
1322041
1429349
1538329
1648839
1761325
1876479
1993957
20114717
21138041
22164153
23194505
24229625
25268259
26311031
27359719
28413245
29472145
30537835
31608837
32688121
33774877
34867549
35971403
361080637
371198233
381326059
391467029
401617451
411777881
421948219
432132381
442329081
452539351

[1,15,75,237,559,1157,2055,3471,5449,8131,11633,
 16361,22041,29349,38329,48839,61325,76479,93957,
 114717,138041,164153,194505,229625,268259,311031,
 359719,413245,472145,537835,608837,688121,774877,
 867549,971403,1080637,1198233,1326059,1467029,
 1617451,1777881,1948219,2132381,2329081,2539351]