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A138796 as a simple table

na(n)
22
33
44
53
66
74
88
94
1010
116
125
137
145
156
1616
179
186
1910
206
218
227
2312
249
257
268
277
2828
2915
308
3116
3232
338
3410
358
3613
3719
3811
399
4010
4121
429
4322
449
4510
4613
4724
4817
4910
5012
5111
5210
5327
5410
5513
5611
5712
5816
5930
6011
6131
6217
6311
6464
6511
6618
6734
6812
6914
7013
7136
7212
7337
7420
7512
7613
7712
7821
7940
8018

[2,3,4,3,6,4,8,4,10,6,5,7,5,6,16,9,6,10,6,8,7,12,
 9,7,8,7,28,15,8,16,32,8,10,8,13,19,11,9,10,21,9,
 22,9,10,13,24,17,10,12,11,10,27,10,13,11,12,16,30,
 11,31,17,11,64,11,18,34,12,14,13,36,12,37,20,12,
 13,12,21,40,18]