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A047221 as a simple table

na(n)
12
23
37
48
512
613
717
818
922
1023
1127
1228
1332
1433
1537
1638
1742
1843
1947
2048
2152
2253
2357
2458
2562
2663
2767
2868
2972
3073
3177
3278
3382
3483
3587
3688
3792
3893
3997
4098
41102
42103
43107
44108
45112
46113
47117
48118
49122
50123
51127
52128
53132
54133
55137
56138
57142
58143
59147
60148
61152
62153

[2,3,7,8,12,13,17,18,22,23,27,28,32,33,37,38,42,
 43,47,48,52,53,57,58,62,63,67,68,72,73,77,78,82,
 83,87,88,92,93,97,98,102,103,107,108,112,113,117,
 118,122,123,127,128,132,133,137,138,142,143,147,
 148,152,153]