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A248408 as a simple table

na(n)
12
21
33
45
52
64
76
89
910
101
1112
1210
137
147
1513
1613
1714
182
1915
2016
218
2213
2316
245
257
2619
277
2811
292
306
314
3213
336
348
3522
3621
3710
3821
3924
4010
4117
4220
4325
443
457
4622
4719
4816
4926
5021
5111
5218
5328
5418
5523
5626
5730
5810
5929
6031
6131
6228
6332
6424
651
6624
675
6821
695
707
7126
7218
7329
7411
7533
7620
7732
7835
7915
8028
812
8222

[2,1,3,5,2,4,6,9,10,1,12,10,7,7,13,13,14,2,15,16,
 8,13,16,5,7,19,7,11,2,6,4,13,6,8,22,21,10,21,24,
 10,17,20,25,3,7,22,19,16,26,21,11,18,28,18,23,26,
 30,10,29,31,31,28,32,24,1,24,5,21,5,7,26,18,29,11,
 33,20,32,35,15,28,2,22]