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A257405 as a simple table

na(n)
11
22
33
46
55
610
77
814
94
108
1111
1222
1313
1426
1512
169
1717
1834
1919
2038
2116
2218
2323
2446
2520
2615
2721
2824
2929
3058
3131
3262
3328
3430
3525
3635
3737
3874
3932
4036
4141
4282
4343
4486
4540
4642
4747
4894
4944
5033
5127
5239
5353
54106
5548
5645
5750
5852
5959
60118
6161
62122
6354
6451
6557
6660
6767

[1,2,3,6,5,10,7,14,4,8,11,22,13,26,12,9,17,34,19,
 38,16,18,23,46,20,15,21,24,29,58,31,62,28,30,25,
 35,37,74,32,36,41,82,43,86,40,42,47,94,44,33,27,
 39,53,106,48,45,50,52,59,118,61,122,54,51,57,60,
 67]