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A033637 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1111
1212
1314
1415
1516
1618
1720
1821
1922
2024
2125
2227
2328
2430
2532
2633
2735
2836
2940
3042
3144
3245
3348
3449
3550
3654
3755
3856
3960
4063
4164
4266
4370
4472
4575
4677
4780
4881
4984
5088
5190
5296
5398
5499
55100
56101
57105
58108
59110
60112
61120
62121
63125
64126
65128
66132
67135
68140

[1,2,3,4,5,6,7,8,9,10,11,12,14,15,16,18,20,21,22,
 24,25,27,28,30,32,33,35,36,40,42,44,45,48,49,50,
 54,55,56,60,63,64,66,70,72,75,77,80,81,84,88,90,
 96,98,99,100,101,105,108,110,112,120,121,125,126,
 128,132,135,140]