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A250090 as a simple table

na(n)
01
10
23
32
45
56
67
74
89
912
1011
1110
1213
1314
1415
158
1617
1724
1819
1918
2021
2122
2223
2320
2425
2528
2627
2726
2829
2930
3031
3116
3233
3348
3435
3534
3637
3738
3839
3936
4041
4144
4243
4342
4445
4546
4647
4740
4849
4956
5051
5150
5253
5354
5455
5552
5657
5760
5859
5958
6061
6162
6263
6332
6465
6596
6667
6766
6869
6970
7071
7168
7273
7376
7475
7574
7677
7778
7879
7972
8081
8188
8283
8382
8485
8586
8687
8784
8889
8992
9091

[1,0,3,2,5,6,7,4,9,12,11,10,13,14,15,8,17,24,19,
 18,21,22,23,20,25,28,27,26,29,30,31,16,33,48,35,
 34,37,38,39,36,41,44,43,42,45,46,47,40,49,56,51,
 50,53,54,55,52,57,60,59,58,61,62,63,32,65,96,67,
 66,69,70,71,68,73,76,75,74,77,78,79,72,81,88,83,
 82,85,86,87,84,89,92,91]