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A183322 as a simple table

na(n)
12
23
33
45
56
65
78
813
913
108
1113
1227
1343
1427
1513
1621
1757
18124
19124
2057
2121
2234
23119
24377
25480
26377
27119
2834
2955
30250
311109
321975
331975
341109
35250
3655
3789
38523
393305
407833
4111385
427833
433305
44523
4589
46144
471097
489767
4931428
5061755
5161755
5231428
539767
541097
55144

[2,3,3,5,6,5,8,13,13,8,13,27,43,27,13,21,57,124,
 124,57,21,34,119,377,480,377,119,34,55,250,1109,
 1975,1975,1109,250,55,89,523,3305,7833,11385,7833,
 3305,523,89,144,1097,9767,31428,61755,61755,31428,
 9767,1097,144]