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A143692 as a simple table

na(n)
11
22
34
43
56
65
78
810
97
109
1112
1214
1316
1411
1513
1615
1718
1820
1922
2024
2117
2219
2326
2421
2523
2625
2728
2830
2932
3034
3136
3238
3327
3429
3531
3633
3740
3835
3937
4039
4142
4244
4346
4448
4550
4641
4752
4854
4943
5056
5145
5258
5360
5447
5549
5651
5753
5855
5962
6057
6164
6259
6366
6461
6563
6668
6770
6872
6965
7074
7176
7278

[1,2,4,3,6,5,8,10,7,9,12,14,16,11,13,15,18,20,22,
 24,17,19,26,21,23,25,28,30,32,34,36,38,27,29,31,
 33,40,35,37,39,42,44,46,48,50,41,52,54,43,56,45,
 58,60,47,49,51,53,55,62,57,64,59,66,61,63,68,70,
 72,65,74,76,78]