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A222221 as a simple table

na(n)
00
14
22
33
41
55
66
77
88
99
1040
1144
1242
1343
1441
1545
1646
1747
1848
1949
2020
2124
2222
2323
2421
2525
2626
2727
2828
2929
3030
3134
3232
3333
3431
3535
3636
3737
3838
3939
4010
4114
4212
4313
4411
4515
4616
4717
4818
4919
5050
5154
5252
5353
5451
5555
5656
5757
5858
5959
6060
6164
6262
6363
6461
6565
6666
6767
6868
6969
7070
7174
7272
7373
7471
7575

[0,4,2,3,1,5,6,7,8,9,40,44,42,43,41,45,46,47,48,
 49,20,24,22,23,21,25,26,27,28,29,30,34,32,33,31,
 35,36,37,38,39,10,14,12,13,11,15,16,17,18,19,50,
 54,52,53,51,55,56,57,58,59,60,64,62,63,61,65,66,
 67,68,69,70,74,72,73,71,75]