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A235498 as a simple table

na(n)
00
11
22
34
45
56
67
78
89
910
1011
1112
1214
1315
1416
1517
1618
1719
1820
1921
2022
2124
2225
2326
2427
2528
2629
2730
2831
2932
3034
3135
3236
3337
3438
3539
3640
3741
3842
3944
4045
4146
4247
4348
4449
4550
4651
4752
4854
4955
5056
5157
5258
5359
5460
5561
5662
5764
5865
5966
6067
6168
6269
6370
6471
6572
6674

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