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A048671 as a simple table

na(n)
11
21
31
42
51
66
71
84
93
1010
111
1212
131
1414
1515
168
171
1818
191
2020
2121
2222
231
2424
255
2626
279
2828
291
3030
311
3216
3333
3434
3535
3636
371
3838
3939
4040
411
4242
431
4444
4545
4646
471
4848
497
5050
5151
5252
531
5454
5555
5656
5757
5858
591
6060
611
6262
6363
6432
6565
6666
671
6868
6969
7070
711
7272
731
7474
7575
7676
7777
7878
791

[1,1,1,2,1,6,1,4,3,10,1,12,1,14,15,8,1,18,1,20,21,
 22,1,24,5,26,9,28,1,30,1,16,33,34,35,36,1,38,39,
 40,1,42,1,44,45,46,1,48,7,50,51,52,1,54,55,56,57,
 58,1,60,1,62,63,32,65,66,1,68,69,70,1,72,1,74,75,
 76,77,78,1]