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A131268 as a simple table

na(n)
01
11
21
31
41
51
61
71
83
91
101
111
125
133
141
151
161
177
185
195
201
211
221
239
247
2511
265
271
281
291
3011
319
3219
3311
347
351
361
371
3813
3911
4029
4119
4219
437
441
451
461
4715
4813
4941
5029
5139
5219
539
541
551
561
5717
5815
5955
6041
6169
6239
6329
649
651
661
671
6819
6917
7071
7155
72111
7369
7469
7529
7611
771
781
791
8021
8119
8289
8371
84167
85111
86139
8769
8841
8911
901

[1,1,1,1,1,1,1,1,3,1,1,1,5,3,1,1,1,7,5,5,1,1,1,9,
 7,11,5,1,1,1,11,9,19,11,7,1,1,1,13,11,29,19,19,7,
 1,1,1,15,13,41,29,39,19,9,1,1,1,17,15,55,41,69,39,
 29,9,1,1,1,19,17,71,55,111,69,69,29,11,1,1,1,21,
 19,89,71,167,111,139,69,41,11,1]