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A087559 as a simple table

na(n)
11
22
34
43
56
65
710
89
98
107
1118
1213
1312
1414
1516
1615
1724
1811
1922
2020
2126
2219
2330
2417
2528
2621
2734
2825
2932
3023
3136
3229
3340
3427
3542
3631
3748
3839
3938
4033
4156
4235
4346
4447
4550
4643
4744
4837
4952
5045
5160
5249
5366
5454
5558
5641
5768
5855
5962
6051
6170
6259
6374
6467
6586
6653
6764
6857
6972
7061
7198
7269

[1,2,4,3,6,5,10,9,8,7,18,13,12,14,16,15,24,11,22,
 20,26,19,30,17,28,21,34,25,32,23,36,29,40,27,42,
 31,48,39,38,33,56,35,46,47,50,43,44,37,52,45,60,
 49,66,54,58,41,68,55,62,51,70,59,74,67,86,53,64,
 57,72,61,98,69]