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A274807 as a simple table

na(n)
121735
258695
393015
494094
5111111
6123255
7137240
8140504
9159159
10162944
11175959
12178815
13190280
14202215
15214136
16215270
17224895
18226610
19233624
20239624
21239784
22242535
23246375
24248744
25250263
26251559
27258687
28259064
29259335
30260337

[21735,58695,93015,94094,111111,123255,137240,
 140504,159159,162944,175959,178815,190280,202215,
 214136,215270,224895,226610,233624,239624,239784,
 242535,246375,248744,250263,251559,258687,259064,
 259335,260337]