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A278511 as a simple table

na(n)
12
24
33
46
55
67
78
811
99
1013
1110
1217
1321
1415
1519
1612
1723
1833
1937
2025
2127
2214
2329
2445
2555
2651
2731
2839
2916
3035
3157
3275
3385
3473
3543
3649
3718
3841
3969
4097
41111
42121
4399
4461
4563
4620
4747
4881
49115
50145
51159
52151
53127
5467
5579
5622
5753
5893
59135
60171
61199
62211
63193
64163
6587
6691
6724
6859
69105
70157
71205
72243
73267
74271
75247
76187
77103
78109

[2,4,3,6,5,7,8,11,9,13,10,17,21,15,19,12,23,33,37,
 25,27,14,29,45,55,51,31,39,16,35,57,75,85,73,43,
 49,18,41,69,97,111,121,99,61,63,20,47,81,115,145,
 159,151,127,67,79,22,53,93,135,171,199,211,193,
 163,87,91,24,59,105,157,205,243,267,271,247,187,
 103,109]