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A194203 as a simple table

na(n)
10
21
32
44
56
69
712
815
919
1024
1129
1235
1341
1447
1554
1662
1770
1879
1988
2098
21108
22119
23130
24141
25153
26166
27180
28194
29208
30223
31238
32254
33270
34287
35305
36323
37341
38360
39379
40398
41418
42439
43460
44482
45504
46526
47549
48573
49597
50622
51647
52673
53699
54726
55753
56780

[0,1,2,4,6,9,12,15,19,24,29,35,41,47,54,62,70,79,
 88,98,108,119,130,141,153,166,180,194,208,223,238,
 254,270,287,305,323,341,360,379,398,418,439,460,
 482,504,526,549,573,597,622,647,673,699,726,753,
 780]