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A054254 as a simple table

na(n)
00
11
22
35
48
513
619
726
834
943
1053
1164
1276
1389
14103
15118
16134
17151
18169
19188
20208
21229
22251
23274
24298
25323
26349
27376
28404
29433
30463
31494
32526
33559
34593
35628
36664
37701
38739
39778
40818
41859
42901
43944
44988
451033
461079
471126
481174
491223
501273

[0,1,2,5,8,13,19,26,34,43,53,64,76,89,103,118,134,
 151,169,188,208,229,251,274,298,323,349,376,404,
 433,463,494,526,559,593,628,664,701,739,778,818,
 859,901,944,988,1033,1079,1126,1174,1223,1273]