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A214881 as a simple table

na(n)
11
22
33
45
55
66
78
88
99
1013
1114
1214
1314
1414
1515
1617
1717
1818
1921
2021
2122
2223
2326
2426
2526
2626
2727
2828
2930
3030
3131
3232
3334
3434
3536
3636
3738
3838
3939
4042
4141
4248
4343
4444
4549
4646
4747
4849
4952
5051
5151
5252
5353
5456
5556
5656
5763
5858
5959
6060
6161
6265
6364
6464
6566
6666
6767

[1,2,3,5,5,6,8,8,9,13,14,14,14,14,15,17,17,18,21,
 21,22,23,26,26,26,26,27,28,30,30,31,32,34,34,36,
 36,38,38,39,42,41,48,43,44,49,46,47,49,52,51,51,
 52,53,56,56,56,63,58,59,60,61,65,64,64,66,66,67]