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A071560 as a simple table

na(n)
11
21
32
41
52
61
710
83
910
107
116
1225
1310
1415
1514
161
172
185
1910
203
2110
2215
238
2419
256
2611
272
2813
29120
3011
3176
325
3320
349
3568
3665
3730
383
3934
4043
4166
425
4310
44149
452
4621
4720
48893
4934
5017
5120
5227
5320
5485
5558
56141
572
5855
5920
6037
6110
6247
63110
6485
6518
6641
6740
6835
6910
70223
7126
727
73240
749
758

[1,1,2,1,2,1,10,3,10,7,6,25,10,15,14,1,2,5,10,3,
 10,15,8,19,6,11,2,13,120,11,76,5,20,9,68,65,30,3,
 34,43,66,5,10,149,2,21,20,893,34,17,20,27,20,85,
 58,141,2,55,20,37,10,47,110,85,18,41,40,35,10,223,
 26,7,240,9,8]