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A280741 as a simple table

na(n)
11
22
34
43
57
65
711
86
910
108
1114
129
1323
1412
1517
1613
1724
1816
1928
2018
2120
2215
2331
2419
2535
2622
2734
2821
2939
3026
3149
3230
3343
3425
3536
3633
3755
3829
3944
4041
4163
4237
4366
4446
4527
4632
4770
4838
4948
5051
5159
5245
5387
5454
5542
5657
5774
5840
5991
6061
6195
6250
6358
6465
6552
6668
67104

[1,2,4,3,7,5,11,6,10,8,14,9,23,12,17,13,24,16,28,
 18,20,15,31,19,35,22,34,21,39,26,49,30,43,25,36,
 33,55,29,44,41,63,37,66,46,27,32,70,38,48,51,59,
 45,87,54,42,57,74,40,91,61,95,50,58,65,52,68,104]