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A264116 as a simple table

na(n)
11
22
33
42
54
63
75
83
96
104
115
127
134
145
158
165
176
189
195
207
2110
226
238
247
2511
266
278
287
2912
307
3110
329
3313
347
3510
369
3714
388
3911
409
4115
428
4312
4410
4511
4616
479
4813
4911
5012
5117
529
5313
5411
5512
5618
5710
5815
5912
6013
6119
6210
6315
6412
6513
6620
6711
6816
6913
7015
7121
7211
7317
7414
7516
7615
7722
7812
7918
8014
8116
8215

[1,2,3,2,4,3,5,3,6,4,5,7,4,5,8,5,6,9,5,7,10,6,8,7,
 11,6,8,7,12,7,10,9,13,7,10,9,14,8,11,9,15,8,12,10,
 11,16,9,13,11,12,17,9,13,11,12,18,10,15,12,13,19,
 10,15,12,13,20,11,16,13,15,21,11,17,14,16,15,22,
 12,18,14,16,15]