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A161821 as a simple table

na(n)
13
25
37
49
56
611
715
817
912
1021
1113
1219
1314
1423
1531
1633
1724
1820
1925
2037
2122
2226
2327
2435
2528
2643
2729
2839
2930
3047
3163
3265
3348
3440
3549
3673
3738
3841
3951
4069
4144
4285
4345
4450
4546
4653
4755
4867
4956
5052
5157
5275
5354
5458
5559
5671
5760
5887
5961
6079
6162
6295
63127
64129
6596
6680
6797
6872
6970
7081
7199

[3,5,7,9,6,11,15,17,12,21,13,19,14,23,31,33,24,20,
 25,37,22,26,27,35,28,43,29,39,30,47,63,65,48,40,
 49,73,38,41,51,69,44,85,45,50,46,53,55,67,56,52,
 57,75,54,58,59,71,60,87,61,79,62,95,127,129,96,80,
 97,72,70,81,99]