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A087808 as a simple table

na(n)
00
11
22
32
44
53
64
73
88
95
106
114
128
135
146
154
1616
179
1810
196
2012
217
228
235
2416
259
2610
276
2812
297
308
315
3232
3317
3418
3510
3620
3711
3812
397
4024
4113
4214
438
4416
459
4610
476
4832
4917
5018
5110
5220
5311
5412
557
5624
5713
5814
598
6016
619
6210
636
6464
6533
6634
6718
6836
6919
7020
7111
7240
7321
7422
7512

[0,1,2,2,4,3,4,3,8,5,6,4,8,5,6,4,16,9,10,6,12,7,8,
 5,16,9,10,6,12,7,8,5,32,17,18,10,20,11,12,7,24,13,
 14,8,16,9,10,6,32,17,18,10,20,11,12,7,24,13,14,8,
 16,9,10,6,64,33,34,18,36,19,20,11,40,21,22,12]