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A122250 as a simple table

na(n)
00
11
23
37
412
518
626
735
845
958
1072
1187
12104
13122
14141
15162
16184
17207
18233
19260
20288
21318
22349
23381
24415
25450
26486
27526
28567
29609
30653
31698
32744
33792
34841
35891
36944
37998
381053
391110
401168

[0,1,3,7,12,18,26,35,45,58,72,87,104,122,141,162,
 184,207,233,260,288,318,349,381,415,450,486,526,
 567,609,653,698,744,792,841,891,944,998,1053,1110,
 1168]