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A196087 as a simple table

na(n)
10
21
33
48
515
631
751
890
9142
10228
11341
12525
13757
141110
151572
162233
173084
184286
195812
207910
2110580
2214145
2318659
2424626
2532099
2641814
2753976
2869559
2988932
30113557
31143967
32182241
33229353
34288078
35360029
36449158
37557757
38691369
39853628
401051974

[0,1,3,8,15,31,51,90,142,228,341,525,757,1110,
 1572,2233,3084,4286,5812,7910,10580,14145,18659,
 24626,32099,41814,53976,69559,88932,113557,143967,
 182241,229353,288078,360029,449158,557757,691369,
 853628,1051974]