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A131245 as a simple table

na(n)
01
12
21
33
42
51
65
75
82
91
108
119
127
132
141
1513
1619
1713
189
192
201
2121
2233
2334
2417
2511
262
271
2834
2965
3061
3153
3221
3313
342
351
3655
37111
38141
3997
4076
4125
4215
432
441
4589
46210
47248
48257
49141
50103
5129
5217
532
541
55144
56355
57534
58461
59421
60193
61134
6233
6319
642
651

[1,2,1,3,2,1,5,5,2,1,8,9,7,2,1,13,19,13,9,2,1,21,
 33,34,17,11,2,1,34,65,61,53,21,13,2,1,55,111,141,
 97,76,25,15,2,1,89,210,248,257,141,103,29,17,2,1,
 144,355,534,461,421,193,134,33,19,2,1]