login

A073885 as a simple table

na(n)
11
22
34
43
57
65
79
88
96
1010
1112
1211
1319
1413
1514
1616
1717
1815
1921
2020
2118
2222
2324
2423
2525
2626
2727
2828
2933
3029
3131
3230
3332
3434
3535
3636
3743
3837
3938
4040
4139
4241
4349
4442
4545
4644
4767
4846
4947
5048
5150
5251
5354
5453
5552
5656
5757
5855
5963
6058
6160
6259
6361
6464
6562
6665
6769
6868
6966
7070
7172
7271

[1,2,4,3,7,5,9,8,6,10,12,11,19,13,14,16,17,15,21,
 20,18,22,24,23,25,26,27,28,33,29,31,30,32,34,35,
 36,43,37,38,40,39,41,49,42,45,44,67,46,47,48,50,
 51,54,53,52,56,57,55,63,58,60,59,61,64,62,65,69,
 68,66,70,72,71]