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A299238 as a simple table

na(n)
12
21
37
45
54
616
73
815
912
1011
1110
129
1334
1433
158
166
1732
1831
1926
2025
2124
2223
2322
2421
2520
2619
2770
2869
2968
3067
3118
3217
3314
3413
3566
3665
3764
3863
3954
4053
4152
4251
4350
4449
4548
4647
4746
4845
4944
5043
5142
5241
5340
5439
55142
56141
57140
58139
59138
60137
61136
62135
6338
6437
6536

[2,1,7,5,4,16,3,15,12,11,10,9,34,33,8,6,32,31,26,
 25,24,23,22,21,20,19,70,69,68,67,18,17,14,13,66,
 65,64,63,54,53,52,51,50,49,48,47,46,45,44,43,42,
 41,40,39,142,141,140,139,138,137,136,135,38,37,36]