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A115306 as a simple table

na(n)
11
22
33
44
55
611
710
89
98
107
116
1217
1316
1415
1514
1613
1712
1823
1922
2021
2120
2219
2318
2429
2528
2627
2726
2825
2924
3035
3134
3233
3332
3431
3530
3671
3770
3869
3968
4067
4166
4265
4364
4463
4562
4661
4760
4859
4958
5057
5156
5255
5354
5453
5552
5651
5750
5849
5948
6047
6146
6245
6344
6443
6542
6641
6740
6839
6938
7037
7136
72107

[1,2,3,4,5,11,10,9,8,7,6,17,16,15,14,13,12,23,22,
 21,20,19,18,29,28,27,26,25,24,35,34,33,32,31,30,
 71,70,69,68,67,66,65,64,63,62,61,60,59,58,57,56,
 55,54,53,52,51,50,49,48,47,46,45,44,43,42,41,40,
 39,38,37,36,107]