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A280504 as a simple table

na(n)
11
21
31
42
51
63
71
84
91
101
1111
121
1313
147
151
168
171
189
1919
2010
211
2211
2313
246
2525
2613
271
287
2911
3015
311
3216
331
3415
3513
362
3737
381
3911
4012
4141
421
4325
4422
451
4613
4747
484
4911
5025
511
521
5319
543
5555
561
5713
5811
5959
605
6161
6231
631
6432
651
6633
6767
6834
6969
7035
7161
7236
731
7437
7513
7638
7759
7839
7925
8040
8181
8241
8311
8442
851
8643
8787
8844
8955
9045
9191
9246
931
9447
9519
9624
9797
9849
991
10025
10113

[1,1,1,2,1,3,1,4,1,1,11,1,13,7,1,8,1,9,19,10,1,11,
 13,6,25,13,1,7,11,15,1,16,1,15,13,2,37,1,11,12,41,
 1,25,22,1,13,47,4,11,25,1,1,19,3,55,1,13,11,59,5,
 61,31,1,32,1,33,67,34,69,35,61,36,1,37,13,38,59,
 39,25,40,81,41,11,42,1,43,87,44,55,45,91,46,1,47,
 19,24,97,49,1,25,13]