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A209815 as a simple table

na(n)
10
21
34
410
523
647
790
8164
9288
10488
11807
121303
132063
143210
154920
167434
1711098
1816380
1923928
2034624
2149668
2270667
2399795
24139935
25194930
26269857
27371413
28508363
29692195
30937838
311264685
321697810
332269557
343021462
354006812
365293650
376968730
389142306
3911954194

[0,1,4,10,23,47,90,164,288,488,807,1303,2063,3210,
 4920,7434,11098,16380,23928,34624,49668,70667,
 99795,139935,194930,269857,371413,508363,692195,
 937838,1264685,1697810,2269557,3021462,4006812,
 5293650,6968730,9142306,11954194]