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A274500 as a simple table

na(n)
11
22
33
45
54
66
77
89
911
108
1110
1212
1313
1415
1517
1619
1721
1814
1916
2018
2120
2222
2323
2425
2527
2629
2724
2826
2928
3030
3131
3233
3335
3437
3539
3641
3732
3834
3936
4038
4140
4242
4343
4445
4547
4649
4751
4853
4955
5044
5146
5248
5350
5452
5554
5656
5757
5859
5961
6063
6165
6267
6369
6471
6573
6658
6760
6862
6964
7066
7168
7270
7372
7474
7575
7677
7779
7881
7983
8085
8187
8289
8391
8493
8595
8676
8778
8880
8982
9084
9186
9288
9390

[1,2,3,5,4,6,7,9,11,8,10,12,13,15,17,19,21,14,16,
 18,20,22,23,25,27,29,24,26,28,30,31,33,35,37,39,
 41,32,34,36,38,40,42,43,45,47,49,51,53,55,44,46,
 48,50,52,54,56,57,59,61,63,65,67,69,71,73,58,60,
 62,64,66,68,70,72,74,75,77,79,81,83,85,87,89,91,
 93,95,76,78,80,82,84,86,88,90]