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A307784 as a simple table

na(n)
01
12
23
34
45
56
65
73
84
95
104
113
124
135
146
157
168
179
188
197
208
219
2210
238
245
256
267
278
289
2910
309
317
328
339
348
357
368
379
3810
398
405
416
427
438
449
4510
469
478
489
4910
5011
5112
5213
5314
5413
5512
5611
579
5810
5911
6012
6113
6212
6311
6412
6513
6614
6715
6814
6912
7013
7114
7213
7312
7411
7512
7614

[1,2,3,4,5,6,5,3,4,5,4,3,4,5,6,7,8,9,8,7,8,9,10,8,
 5,6,7,8,9,10,9,7,8,9,8,7,8,9,10,8,5,6,7,8,9,10,9,
 8,9,10,11,12,13,14,13,12,11,9,10,11,12,13,12,11,
 12,13,14,15,14,12,13,14,13,12,11,12,14]