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A331626 as a simple table

na(n)
11
22
33
44
55
66
77
88
99
1011
1122
1214
1325
1418
1526
1617
1723
1844
1912
2033
2115
2224
2331
2427
2513
2642
2716
2828
2919
3036
3121
3234
3352
3437
3529
3635
3741
3838
3954
4032
4145
4262
4339
4446
4551
4647
4753
4848
4955
5043
5156
5273
5349
5457
5563
5658
5764
5859
5968
6072
6166
6275
6369
6482
6565
6674
6788
6867
6983
7076
71133
7287
73113
7489
7577
7684
7779
7885

[1,2,3,4,5,6,7,8,9,11,22,14,25,18,26,17,23,44,12,
 33,15,24,31,27,13,42,16,28,19,36,21,34,52,37,29,
 35,41,38,54,32,45,62,39,46,51,47,53,48,55,43,56,
 73,49,57,63,58,64,59,68,72,66,75,69,82,65,74,88,
 67,83,76,133,87,113,89,77,84,79,85]