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A131845 as a simple table

na(n)
11
21
32
43
54
65
75
84
97
106
116
128
139
1410
1510
169
1712
1811
1910
209
2114
2211
237
246
2510
2616
2713
288
298
309
3117
328
3310
3417
3512
3613
3713
385
398
4018
4122
4219
437
446
4512
4623
4714
489
4919
5010
5114
5220
5326
5424
5524
5627
5727
5810
5926
6021
6120
6232
6324
6423
6523
665
679
6813
6913
707
7111
729
7313
7416
7520
7627
7738
7822
7913
8017

[1,1,2,3,4,5,5,4,7,6,6,8,9,10,10,9,12,11,10,9,14,
 11,7,6,10,16,13,8,8,9,17,8,10,17,12,13,13,5,8,18,
 22,19,7,6,12,23,14,9,19,10,14,20,26,24,24,27,27,
 10,26,21,20,32,24,23,23,5,9,13,13,7,11,9,13,16,20,
 27,38,22,13,17]