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A154811 as a simple table

na(n)
01
12
25
34
47
58
68
77
84
95
102
111
121
132
145
154
167
178
188
197
204
215
222
231
241
252
265
274
287
298
308
317
324
335
342
351
361
372
385
394
407
418
428
437
444
455
462
471
481
492
505
514
527
538
548
557
564
575
582
591
601
612
625
634
647
658
668
677
684
695
702
711

[1,2,5,4,7,8,8,7,4,5,2,1,1,2,5,4,7,8,8,7,4,5,2,1,
 1,2,5,4,7,8,8,7,4,5,2,1,1,2,5,4,7,8,8,7,4,5,2,1,1,
 2,5,4,7,8,8,7,4,5,2,1,1,2,5,4,7,8,8,7,4,5,2,1]