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A130990 as a simple table

na(n)
00
11
22
33
44
55
68
76
87
99
1010
1112
1213
1311
1420
1521
1619
1714
1815
1922
2016
2117
2218
2323
2424
2525
2626
2727
2831
2932
3036
3134
3235
3330
3433
3528
3629
3754
3855
3959
4057
4158
4253
4356
4451
4537
4638
4752
4841
4939
5040
5161
5264
5360
5442
5543
5662
5744
5845
5946
6063
6147
6249
6350
6448
6565
6666
6769
6867
6968
7070
7171

[0,1,2,3,4,5,8,6,7,9,10,12,13,11,20,21,19,14,15,
 22,16,17,18,23,24,25,26,27,31,32,36,34,35,30,33,
 28,29,54,55,59,57,58,53,56,51,37,38,52,41,39,40,
 61,64,60,42,43,62,44,45,46,63,47,49,50,48,65,66,
 69,67,68,70,71]