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A043687 as a simple table

na(n)
12
24
35
46
58
69
711
812
913
1014
1116
1217
1319
1423
1524
1625
1727
1828
1929
2030
2132
2233
2335
2439
2547
2648
2749
2851
2955
3056
3157
3259
3360
3461
3562
3664
3765
3867
3971
4079
4195
4296
4397
4499
45103
46111
47112
48113
49115
50119
51120
52121
53123
54124
55125
56126
57128
58129

[2,4,5,6,8,9,11,12,13,14,16,17,19,23,24,25,27,28,
 29,30,32,33,35,39,47,48,49,51,55,56,57,59,60,61,
 62,64,65,67,71,79,95,96,97,99,103,111,112,113,115,
 119,120,121,123,124,125,126,128,129]