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A144680 as a simple table

na(n)
11
22
33
43
55
67
74
87
911
1014
115
129
1315
1421
1525
166
1711
1819
1928
2036
2141
227
2313
2423
2535
2647
2757
2863
298
3015
3127
3242
3358
3473
3585
3692
379
3817
3931
4049
4169
4289
43107
44121
45129
4610
4719
4835
4956
5080
51105
52129
53150
54166
55175

[1,2,3,3,5,7,4,7,11,14,5,9,15,21,25,6,11,19,28,36,
 41,7,13,23,35,47,57,63,8,15,27,42,58,73,85,92,9,
 17,31,49,69,89,107,121,129,10,19,35,56,80,105,129,
 150,166,175]