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A113963 as a simple table

na(n)
11
24
37
42
55
68
73
810
913
106
1111
1214
139
1416
1519
1612
1717
1820
1923
2015
2122
2225
2318
2426
2521
2629
2724
2831
2927
3032
3135
3238
3328
3433
3537
3630
3739
3834
3940
4043
4136
4241
4344
4447
4542
4650
4753
4845
4949
5046
5151
5255
5348
5457
5552
5658
5761
5854
5959
6056
6162
6265
6368
6463
6567
6660
6769
6864
6970
7073
7166
7271

[1,4,7,2,5,8,3,10,13,6,11,14,9,16,19,12,17,20,23,
 15,22,25,18,26,21,29,24,31,27,32,35,38,28,33,37,
 30,39,34,40,43,36,41,44,47,42,50,53,45,49,46,51,
 55,48,57,52,58,61,54,59,56,62,65,68,63,67,60,69,
 64,70,73,66,71]