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A261085 as a simple table

na(n)
11
22
33
44
54
65
76
87
98
1010
1111
1213
1314
1415
1515
1617
1719
1820
1922
2023
2124
2226
2316
2418
2520
2621
2722
2822
2923
3024
3123
3224
3325
3426
3528
3629
3731
3833
3933
4034
4136
4237
4339
4440
4540
4641
4744
4847
4934
5035
5149
5251
5352
5454
5554
5655
5757
5858
5959
6058
6159
6262
6348
6449
6550
6666
6769
6871
6973
7074
7174
7276
7355
7457
7559
7660
7761
7863
7963
8065
8168
8269
8371
8472
8574
8662
8764
8865
8966
9067
9167
9270
9372
9473
9575
9676
9777
9880
9981
10075
10177
10279
10379
10481

[1,2,3,4,4,5,6,7,8,10,11,13,14,15,15,17,19,20,22,
 23,24,26,16,18,20,21,22,22,23,24,23,24,25,26,28,
 29,31,33,33,34,36,37,39,40,40,41,44,47,34,35,49,
 51,52,54,54,55,57,58,59,58,59,62,48,49,50,66,69,
 71,73,74,74,76,55,57,59,60,61,63,63,65,68,69,71,
 72,74,62,64,65,66,67,67,70,72,73,75,76,77,80,81,
 75,77,79,79,81]