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A252999 as a simple table

na(n)
10
20
30
41
534
6279
71028
82601
95318
109499
1115464
1223533
1334026
1447263
1563564
1683249
17106638
18134051
19165808
20202229
21243634
22290343
23342676
24400953
25465494
26536619
27614648
28699901
29792698
30893359
311002204
321119553
331245726
341381043
351525824

[0,0,0,1,34,279,1028,2601,5318,9499,15464,23533,
 34026,47263,63564,83249,106638,134051,165808,
 202229,243634,290343,342676,400953,465494,536619,
 614648,699901,792698,893359,1002204,1119553,
 1245726,1381043,1525824]