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A166494 as a simple table

na(n)
13
28
35
45
512
612
77
87
97
1016
1116
1216
139
149
159
169
1720
1820
1920
2020
2111
2211
2311
2411
2511
2624
2724
2824
2924
3024
3113
3213
3313
3413
3513
3613
3728
3828
3928
4028
4128
4228
4315
4415
4515
4615
4715
4815
4915
5032
5132
5232
5332
5432
5532
5632
5717
5817
5917
6017
6117
6217
6317
6417
6536
6636
6736
6836
6936
7036
7136
7236
7319
7419
7519
7619
7719
7819
7919
8019
8119
8240
8340
8440
8540
8640
8740
8840
8940
9040
9121
9221
9321
9421
9521
9621
9721
9821

[3,8,5,5,12,12,7,7,7,16,16,16,9,9,9,9,20,20,20,20,
 11,11,11,11,11,24,24,24,24,24,13,13,13,13,13,13,
 28,28,28,28,28,28,15,15,15,15,15,15,15,32,32,32,
 32,32,32,32,17,17,17,17,17,17,17,17,36,36,36,36,
 36,36,36,36,19,19,19,19,19,19,19,19,19,40,40,40,
 40,40,40,40,40,40,21,21,21,21,21,21,21,21]