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A111457 as a simple table

na(n)
10
20
31
42
54
64
76
86
98
1010
1110
1213
1315
1415
1516
1618
1721
1821
1923
2024
2124
2226
2327
2430
2534
2634
2734
2835
2935
3036
3142
3243
3345
3445
3550
3650
3751
3854
3955
4056
4158
4258
4361
4461
4562
4662
4768
4875
4976
5076
5176
5278
5378
5480
5582
5684
5786
5886
5987
6088
6188
6291
6398
6499
6599
66100
67106
68108
69111
70111

[0,0,1,2,4,4,6,6,8,10,10,13,15,15,16,18,21,21,23,
 24,24,26,27,30,34,34,34,35,35,36,42,43,45,45,50,
 50,51,54,55,56,58,58,61,61,62,62,68,75,76,76,76,
 78,78,80,82,84,86,86,87,88,88,91,98,99,99,100,106,
 108,111,111]