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A151680 as a simple table

na(n)
00
11
22
32
42
54
65
73
82
94
105
115
127
1310
149
154
162
174
185
195
207
2110
229
236
247
2510
2611
2713
2818
2920
3014
315
322
334
345
355
367
3710
389
396
407
4110
4211
4313
4418
4520
4614
477
487
4910
5011
5113
5218
5320
5416
5514
5618
5722
5825
5932
6039
6135
6220
636
642
654
665
675
687
6910
709
716
727
7310
7411
7513
7618
7720
7814
797
807
8110
8211
8313
8418

[0,1,2,2,2,4,5,3,2,4,5,5,7,10,9,4,2,4,5,5,7,10,9,
 6,7,10,11,13,18,20,14,5,2,4,5,5,7,10,9,6,7,10,11,
 13,18,20,14,7,7,10,11,13,18,20,16,14,18,22,25,32,
 39,35,20,6,2,4,5,5,7,10,9,6,7,10,11,13,18,20,14,7,
 7,10,11,13,18]