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A120135 as a simple table

na(n)
15
28
312
418
527
640
760
890
9135
10203
11304
12456
13684
141026
151539
162309
173463
185195
197792
2011688
2117532
2226298
2339447
2459171
2588756
26133134
27199701
28299552
29449328
30673992
311010988
321516482
332274723
343412084
355118126
367677189
3711515784

[5,8,12,18,27,40,60,90,135,203,304,456,684,1026,
 1539,2309,3463,5195,7792,11688,17532,26298,39447,
 59171,88756,133134,199701,299552,449328,673992,
 1010988,1516482,2274723,3412084,5118126,7677189,
 11515784]