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A026366 as a simple table

na(n)
11
22
31
43
54
62
75
86
97
108
113
129
1310
144
1511
1612
1713
1814
195
2015
2116
226
2317
2418
257
2619
2720
288
2921
3022
3123
3224
339
3425
3526
3610
3727
3828
3929
4030
4111
4231
4332
4412
4533
4634
4713
4835
4936
5014
5137
5238
5339
5440
5515
5641
5742
5816
5943
6044
6145
6246
6317
6447
6548
6618
6749

[1,2,1,3,4,2,5,6,7,8,3,9,10,4,11,12,13,14,5,15,16,
 6,17,18,7,19,20,8,21,22,23,24,9,25,26,10,27,28,29,
 30,11,31,32,12,33,34,13,35,36,14,37,38,39,40,15,
 41,42,16,43,44,45,46,17,47,48,18,49]