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A272904 as a simple table

na(n)
11
22
34
43
56
68
75
89
911
1015
117
1212
1314
1419
1523
1610
1716
1818
1924
2028
2134
2213
2320
2422
2529
2633
2740
2846
2917
3025
3127
3235
3339
3447
3553
3661
3721
3830
3932
4041
4145
4254
4360
4469
4577
4626
4736
4838
4948
5052
5162
5268
5378
5486
5596
5631
5742
5844
5955
6059
6170
6276
6387
6495
65106
66116

[1,2,4,3,6,8,5,9,11,15,7,12,14,19,23,10,16,18,24,
 28,34,13,20,22,29,33,40,46,17,25,27,35,39,47,53,
 61,21,30,32,41,45,54,60,69,77,26,36,38,48,52,62,
 68,78,86,96,31,42,44,55,59,70,76,87,95,106,116]