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A350348 as a simple table

na(n)
11
22
33
44
56
65
77
88
99
1010
1112
1211
1313
1414
1516
1615
1717
1818
1919
2020
2122
2221
2323
2424
2525
2626
2729
2827
2928
3030
3131
3232
3333
3435
3534
3636
3737
3838
3939
4041
4140
4242
4344
4443
4545
4646
4747
4848
4950
5049
5151
5252
5353
5454
5556
5657
5755
5858
5959
6060
6161
6263
6362
6464
6565
6666
6767

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