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A111631 as a simple table

na(n)
01
12
23
35
44
517
613
76
89
98
1014
110
1222
1326
1415
15401
1621
1712
1816
190
2018
2120
2277
23226
2428
2565
2644
27626
2852
2932
3050
31125
3291
3324
34221
35404
36212
3742
3881
3945
4063
4140
4275
4366
4436
4556
4664
47338
4888
49104
50130
51153
52154
53152
54190
55328
56175
5748
58184
59245
60286
61182
62100
63105
64243

[1,2,3,5,4,17,13,6,9,8,14,0,22,26,15,401,21,12,16,
 0,18,20,77,226,28,65,44,626,52,32,50,125,91,24,
 221,404,212,42,81,45,63,40,75,66,36,56,64,338,88,
 104,130,153,154,152,190,328,175,48,184,245,286,
 182,100,105,243]