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A026450 as a simple table

na(n)
12
23
34
45
57
69
713
815
919
1021
1124
1225
1326
1431
1533
1634
1735
1836
1939
2042
2143
2245
2346
2448
2549
2653
2755
2856
2957
3058
3160
3261
3363
3466
3569
3671
3773
3875
3976
4079
4181
4282
4384
4485
4587
4689
4790
4891
4996
5099
51103
52105
53109
54111
55113
56115
57117
58120
59121

[2,3,4,5,7,9,13,15,19,21,24,25,26,31,33,34,35,36,
 39,42,43,45,46,48,49,53,55,56,57,58,60,61,63,66,
 69,71,73,75,76,79,81,82,84,85,87,89,90,91,96,99,
 103,105,109,111,113,115,117,120,121]