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A248543 as a simple table

na(n)
12
215
352
4173
5594
61219
72960
86069
910858
1016099
1123300
1233707
1347400
1463085
1582288
16106583
17135878
18168791
19206738
20250813
21302416
22358755
23422014
24498189
25580572
26669539
27768718
28878929
29998028
301123317
311258070
321407363
331570088

[2,15,52,173,594,1219,2960,6069,10858,16099,23300,
 33707,47400,63085,82288,106583,135878,168791,
 206738,250813,302416,358755,422014,498189,580572,
 669539,768718,878929,998028,1123317,1258070,
 1407363,1570088]