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A113218 as a simple table

na(n)
00
11
22
33
44
55
66
77
88
99
1011
1110
1213
1312
1415
1514
1617
1716
1820
1918
2022
2119
2224
2321
2426
2523
2629
2725
2831
2927
3033
3128
3235
3330
3438
3532
3640
3734
3842
3936
4044
4137
4247
4339
4449
4541
4651
4743
4853
4945
5056
5146
5258
5348
5460
5550
5662
5752
5865
5954
6067
6155
6269
6357
6471
6559
6674
6761
6876
6963
7078
7164
7280

[0,1,2,3,4,5,6,7,8,9,11,10,13,12,15,14,17,16,20,
 18,22,19,24,21,26,23,29,25,31,27,33,28,35,30,38,
 32,40,34,42,36,44,37,47,39,49,41,51,43,53,45,56,
 46,58,48,60,50,62,52,65,54,67,55,69,57,71,59,74,
 61,76,63,78,64,80]