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A213359 as a simple table

na(n)
10
20
32
45
516
627
759
896
9164
10260
11415
12606
13923
141336
151911
162698
173787
185203
197142
209646
2112962
2217295
2322902
2430063
2539315
2651104
2766013
2884898
29108658
30138397
31175593
32221872
33279207
34350248
35437607
36545093
37676764
38837873
391033961
401272730
411562137

[0,0,2,5,16,27,59,96,164,260,415,606,923,1336,
 1911,2698,3787,5203,7142,9646,12962,17295,22902,
 30063,39315,51104,66013,84898,108658,138397,
 175593,221872,279207,350248,437607,545093,676764,
 837873,1033961,1272730,1562137]