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A244218 as a simple table

na(n)
00
11
22
33
45
56
67
78
810
911
1012
1113
1214
1315
1416
1517
1619
1720
1821
1922
2024
2125
2226
2327
2428
2529
2630
2731
2833
2934
3035
3136
3238
3339
3440
3541
3642
3743
3844
3945
4047
4148
4249
4350
4452
4553
4654
4755
4856
4957
5058
5159
5261
5362
5463
5564
5666
5767
5868
5969
6070
6171
6272
6373
6475
6576
6677
6778
6880
6981

[0,1,2,3,5,6,7,8,10,11,12,13,14,15,16,17,19,20,21,
 22,24,25,26,27,28,29,30,31,33,34,35,36,38,39,40,
 41,42,43,44,45,47,48,49,50,52,53,54,55,56,57,58,
 59,61,62,63,64,66,67,68,69,70,71,72,73,75,76,77,
 78,80,81]