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A074147 as a simple table

na(n)
11
22
34
43
55
67
76
88
910
1012
119
1211
1313
1415
1517
1614
1716
1818
1920
2022
2124
2219
2321
2423
2525
2627
2729
2831
2926
3028
3130
3232
3334
3436
3538
3640
3733
3835
3937
4039
4141
4243
4345
4447
4549
4642
4744
4846
4948
5050
5152
5254
5356
5458
5560
5651
5753
5855
5957
6059
6161
6263
6365
6467
6569
6671
6762
6864
6966
7068
7170
7272

[1,2,4,3,5,7,6,8,10,12,9,11,13,15,17,14,16,18,20,
 22,24,19,21,23,25,27,29,31,26,28,30,32,34,36,38,
 40,33,35,37,39,41,43,45,47,49,42,44,46,48,50,52,
 54,56,58,60,51,53,55,57,59,61,63,65,67,69,71,62,
 64,66,68,70,72]