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A072464 as a simple table

na(n)
11
23
33
46
56
66
76
87
97
107
117
127
137
147
157
1611
1711
1811
1911
2011
2111
2211
2311
2411
2511
2611
2711
2811
2911
3011
3111
3212
3312
3412
3512
3612
3712
3812
3912
4012
4112
4212
4312
4412
4512
4612
4712
4812
4912
5012
5112
5212
5312
5412
5512
5612
5712
5812
5912
6012
6112
6212
6312
6413
6513
6613
6713
6813
6913
7013
7113
7213
7313
7413

[1,3,3,6,6,6,6,7,7,7,7,7,7,7,7,11,11,11,11,11,11,
 11,11,11,11,11,11,11,11,11,11,12,12,12,12,12,12,
 12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,12,
 12,12,12,12,12,12,12,12,12,12,13,13,13,13,13,13,
 13,13,13,13,13]