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A031750 as a simple table

na(n)
11297
25186
311667
420740
532405
646662
763511
882952
9104985
10129610
11156827
12186636
13219037
14254030
15291615
16331792
17374561
18419922
19467875
20518420
21571557
22627286
23685607
24746520
25810025
26876122
27944811
281016092
291089965
301166430

[1297,5186,11667,20740,32405,46662,63511,82952,
 104985,129610,156827,186636,219037,254030,291615,
 331792,374561,419922,467875,518420,571557,627286,
 685607,746520,810025,876122,944811,1016092,
 1089965,1166430]