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A143122 as a simple table

na(n)
01
12
21
34
43
52
610
79
88
96
1034
1133
1232
1330
1424
15154
16153
17152
18150
19144
20120
21874
22873
23872
24870
25864
26840
27720
285914
295913
305912
315910
325904
335880
345760
355040
3646234
3746233
3846232
3946230
4046224
4146200
4246080
4345360
4440320

[1,2,1,4,3,2,10,9,8,6,34,33,32,30,24,154,153,152,
 150,144,120,874,873,872,870,864,840,720,5914,5913,
 5912,5910,5904,5880,5760,5040,46234,46233,46232,
 46230,46224,46200,46080,45360,40320]