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A068866 as a simple table

na(n)
11
23
36
410
528
636
745
878
991
10105
11136
12406
13465
14561
15666
16703
17946
181081
193240
206555
217260
229045
2332640
2446971
2547586
2648828
2751360
2870876
2972390
3094395
31319600
32719400
33903840
34914628
354862521
365092836
375112003
385131206
396898755
407108335
419122856

[1,3,6,10,28,36,45,78,91,105,136,406,465,561,666,
 703,946,1081,3240,6555,7260,9045,32640,46971,
 47586,48828,51360,70876,72390,94395,319600,719400,
 903840,914628,4862521,5092836,5112003,5131206,
 6898755,7108335,9122856]