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A170889 as a simple table

na(n)
00
11
22
34
44
54
66
710
88
94
106
1110
1210
1312
1420
1526
1616
174
186
1910
2010
2112
2220
2326
2418
2512
2620
2728
2830
2942
3064
3166
3232
334
346
3510
3610
3712
3820
3926
4018
4112
4220
4328
4430
4542
4664
4766
4834
4912
5020
5128
5230
5342
5464
5568
5646
5742
5866
5984
60100
61146
62192
63162
6464
654
666
6710
6810
6912
7020
7126
7218
7312

[0,1,2,4,4,4,6,10,8,4,6,10,10,12,20,26,16,4,6,10,
 10,12,20,26,18,12,20,28,30,42,64,66,32,4,6,10,10,
 12,20,26,18,12,20,28,30,42,64,66,34,12,20,28,30,
 42,64,68,46,42,66,84,100,146,192,162,64,4,6,10,10,
 12,20,26,18,12]