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A064789 as a simple table

na(n)
11
23
32
46
54
65
710
88
97
109
1115
1213
1311
1412
1514
1621
1719
1817
1916
2018
2120
2228
2326
2424
2522
2623
2725
2827
2936
3034
3132
3230
3329
3431
3533
3635
3745
3843
3941
4039
4137
4238
4340
4442
4544
4655
4753
4851
4949
5047
5146
5248
5350
5452
5554
5666
5764
5862
5960
6058
6156
6257
6359
6461
6563
6665
6778
6876
6974
7072
7170
7268

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