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A212342 as a simple table

na(n)
01
11
22
35
49
514
620
727
835
944
1054
1165
1277
1390
14104
15119
16135
17152
18170
19189
20209
21230
22252
23275
24299
25324
26350
27377
28405
29434
30464
31495
32527
33560
34594
35629

[1,1,2,5,9,14,20,27,35,44,54,65,77,90,104,119,135,
 152,170,189,209,230,252,275,299,324,350,377,405,
 434,464,495,527,560,594,629]