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A076921 as a simple table

na(n)
11
21
32
44
56
69
712
816
920
1025
1130
1236
1342
1449
1556
1664
1772
1881
1990
20100
21110
22121
23132
24144
25156
26169
27182
28196
29210
30225
31240
32256
33272
34289
35306
36324
37342
38361
39380
40400
41420
42441
43462
44484
45506
46529
47552
48576
49600
50625
51650
52676
53702
54729
55756
56784

[1,1,2,4,6,9,12,16,20,25,30,36,42,49,56,64,72,81,
 90,100,110,121,132,144,156,169,182,196,210,225,
 240,256,272,289,306,324,342,361,380,400,420,441,
 462,484,506,529,552,576,600,625,650,676,702,729,
 756,784]