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A075618 as a simple table

na(n)
11
22
34
43
55
66
78
87
910
109
1114
1211
1312
1413
1520
1615
1722
1816
1930
2017
2128
2218
2332
2419
2531
2621
2724
2823
2935
3025
3144
3226
3348
3427
3540
3629
3749
3833
3960
4034
4153
4236
4352
4437
4550
4638
4772
4839
4975
5041
5156
5242
5364
5443
5568
5645
5767
5846
5980
6047
6183
6251
63104
6454
6571
6655
6786
6857
6995
7058
71100
7259

[1,2,4,3,5,6,8,7,10,9,14,11,12,13,20,15,22,16,30,
 17,28,18,32,19,31,21,24,23,35,25,44,26,48,27,40,
 29,49,33,60,34,53,36,52,37,50,38,72,39,75,41,56,
 42,64,43,68,45,67,46,80,47,83,51,104,54,71,55,86,
 57,95,58,100,59]