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A120159 as a simple table

na(n)
115
220
327
436
548
664
785
8114
9152
10202
11270
12360
13480
14640
15853
161137
171516
182022
192696
203594
214792
226390
238520
2411360
2515146
2620195
2726927
2835902
2947870
3063826
3185102
32113469
33151292
34201723
35268964
36358618
37478158
38637544
39850058
401133411

[15,20,27,36,48,64,85,114,152,202,270,360,480,640,
 853,1137,1516,2022,2696,3594,4792,6390,8520,11360,
 15146,20195,26927,35902,47870,63826,85102,113469,
 151292,201723,268964,358618,478158,637544,850058,
 1133411]