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A288937 as a simple table

na(n)
11
22
34
45
58
611
715
820
926
1033
1141
1250
1360
1471
1583
1696
17110
18125
19141
20158
21176
22195
23215
24236
25258
26281
27305
28330
29356
30383
31411
32440
33470
34501
35533
36566
37600
38635
39671
40708
41746
42785
43825
44866
45908
46951
47995
481040
491086
501133
511181
521230
531280
541331

[1,2,4,5,8,11,15,20,26,33,41,50,60,71,83,96,110,
 125,141,158,176,195,215,236,258,281,305,330,356,
 383,411,440,470,501,533,566,600,635,671,708,746,
 785,825,866,908,951,995,1040,1086,1133,1181,1230,
 1280,1331]