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A145198 as a simple table

na(n)
11
22
33
44
55
67
78
89
910
1011
1113
1214
1315
1416
1517
1618
1719
1821
1922
2023
2125
2226
2327
2428
2529
2630
2731
2832
2933
3034
3136
3237
3338
3439
3540
3641
3742
3843
3944
4045
4146
4247
4348
4449
4550
4651
4752
4853
4954
5055
5157
5258
5359
5461
5562
5663
5764
5865
5966
6067
6168
6269
6370
6471
6573
6674
6775
6876
6977
7078
7179
7280

[1,2,3,4,5,7,8,9,10,11,13,14,15,16,17,18,19,21,22,
 23,25,26,27,28,29,30,31,32,33,34,36,37,38,39,40,
 41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,57,
 58,59,61,62,63,64,65,66,67,68,69,70,71,73,74,75,
 76,77,78,79,80]