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A026446 as a simple table

na(n)
12
24
35
46
57
68
79
811
913
1015
1117
1219
1321
1423
1525
1627
1729
1831
1933
2035
2139
2241
2343
2445
2549
2651
2753
2855
2959
3061
3163
3266
3369
3471
3573
3675
3776
3881
3982
4083
4185
4289
4391
4495
4596
4698
4799
48103
49105
50109
51111
52113
53114
54115
55123
56125
57129
58130
59131

[2,4,5,6,7,8,9,11,13,15,17,19,21,23,25,27,29,31,
 33,35,39,41,43,45,49,51,53,55,59,61,63,66,69,71,
 73,75,76,81,82,83,85,89,91,95,96,98,99,103,105,
 109,111,113,114,115,123,125,129,130,131]