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A031297 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1010
1112
121
1316
1418
1520
1622
1724
1826
1928
2030
2115
2234
232
2438
2540
2642
2744
2846
2948
3050
3117
3237
3356
343
3560
3662
3764
3866
3968
4070
4119
4239
4359
4478
454
4682
4784
4886
4988
5090
5121
5241
5361
5481
55100
565
57104
58106
59108
60110
6123
6243
6363
6483

[1,2,3,4,5,6,7,8,9,10,12,1,16,18,20,22,24,26,28,
 30,15,34,2,38,40,42,44,46,48,50,17,37,56,3,60,62,
 64,66,68,70,19,39,59,78,4,82,84,86,88,90,21,41,61,
 81,100,5,104,106,108,110,23,43,63,83]

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Last modified September 20 12:37 EDT 2024. Contains 376072 sequences. (Running on oeis4.)