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A161656 as a simple table

na(n)
10
22
33
44
55
65
77
88
99
107
1111
1210
1313
149
158
1616
1717
1815
1919
2014
2120
2213
2323
2420
2525
2615
2727
2827
2929
3030
3131
3232
3328
3419
3524
3635
3737
3821
3932
4035
4141
4236
4343
4439
4540
4625
4747
4845
4949
5049
5140
5245
5353
5450
5548
5654
5744
5831
5959
6060
6161
6233
6360
6464
6554
6664
6767
6857
6952
7070
7171
7270
7373

[0,2,3,4,5,5,7,8,9,7,11,10,13,9,8,16,17,15,19,14,
 20,13,23,20,25,15,27,27,29,30,31,32,28,19,24,35,
 37,21,32,35,41,36,43,39,40,25,47,45,49,49,40,45,
 53,50,48,54,44,31,59,60,61,33,60,64,54,64,67,57,
 52,70,71,70,73]