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A031995 as a simple table

na(n)
10
21
32
43
54
65
76
87
98
109
1110
1212
1313
1414
1515
1616
1717
1818
1919
2020
2121
2224
2325
2426
2527
2628

[0,1,2,3,4,5,6,7,8,9,10,12,13,14,15,16,17,18,19,
 20,21,24,25,26,27,28]