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A229109 as a simple table

na(n)
11
23
34
45
56
68
78
89
910
1012
1112
1214
1314
1416
1517
1617
1718
1820
1920
2022
2123
2224
2324
2426
2526
2628
2728
2830
2930
3033
3132
3233
3335
3436
3537
3638
3738
3840
3941
4042
4142
4245
4344
4446
4547
4648
4748
4850
4950
5052
5153
5254
5354
5456
5557
5658
5759
5860
5960
6063
6162
6264
6365
6465
6567
6669
6768

[1,3,4,5,6,8,8,9,10,12,12,14,14,16,17,17,18,20,20,
 22,23,24,24,26,26,28,28,30,30,33,32,33,35,36,37,
 38,38,40,41,42,42,45,44,46,47,48,48,50,50,52,53,
 54,54,56,57,58,59,60,60,63,62,64,65,65,67,69,68]