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A269387 as a simple table

na(n)
01
12
23
34
45
56
69
78
87
910
1015
1112
1219
1318
1421
1516
1611
1714
1827
1920
2035
2130
2233
2324
2431
2538
2651
2736
2849
2942
3045
3132
3213
3322
3439
3528
3665
3754
3857
3940
4059
4170
4287
4360
4479
4566
4669
4748
4855
4962
50111
5176
52125
53102
54105
5572
5685
5798
58123
5984
60109
6190
6293
6364
6417
6526
6663
6744
6895
6978
7081
7156
72113
73130
74159
75108
76139
77114
78117
7980

[1,2,3,4,5,6,9,8,7,10,15,12,19,18,21,16,11,14,27,
 20,35,30,33,24,31,38,51,36,49,42,45,32,13,22,39,
 28,65,54,57,40,59,70,87,60,79,66,69,48,55,62,111,
 76,125,102,105,72,85,98,123,84,109,90,93,64,17,26,
 63,44,95,78,81,56,113,130,159,108,139,114,117,80]