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A166453 as a simple table

na(n)
01
12
21
32
40
51
64
72
82
91
102
110
120
130
141
154
162
170
180
192
201
214
220
232
240
252
260
271
288
294
304
312
324
332
342
351
362
370
380
390
400
410
420
430
441
454
462
470
480
490
500
510
520
532
541
554
560
572
580
590
600
610
620
632
640
651

[1,2,1,2,0,1,4,2,2,1,2,0,0,0,1,4,2,0,0,2,1,4,0,2,
 0,2,0,1,8,4,4,2,4,2,2,1,2,0,0,0,0,0,0,0,1,4,2,0,0,
 0,0,0,0,2,1,4,0,2,0,0,0,0,0,2,0,1]