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A131271 as a simple table

na(n)
01
11
22
31
44
52
63
71
88
94
105
112
127
133
146
151
1616
178
189
194
2013
215
2212
232
2415
257
2610
273
2814
296
3011
311
3232
3316
3417
358
3625
379
3824
394
4029
4113
4220
435
4428
4512
4621
472
4831
4915
5018
517
5226
5310
5423
553
5630
5714
5819
596
6027
6111
6222
631
6464
6532
6633
6716
6849
6917
7048
718
7257

[1,1,2,1,4,2,3,1,8,4,5,2,7,3,6,1,16,8,9,4,13,5,12,
 2,15,7,10,3,14,6,11,1,32,16,17,8,25,9,24,4,29,13,
 20,5,28,12,21,2,31,15,18,7,26,10,23,3,30,14,19,6,
 27,11,22,1,64,32,33,16,49,17,48,8,57]