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A047339 as a simple table

na(n)
12
23
34
49
510
611
716
817
918
1023
1124
1225
1330
1431
1532
1637
1738
1839
1944
2045
2146
2251
2352
2453
2558
2659
2760
2865
2966
3067
3172
3273
3374
3479
3580
3681
3786
3887
3988
4093
4194
4295
43100
44101
45102
46107
47108
48109
49114
50115
51116
52121
53122
54123
55128
56129
57130
58135
59136
60137
61142

[2,3,4,9,10,11,16,17,18,23,24,25,30,31,32,37,38,
 39,44,45,46,51,52,53,58,59,60,65,66,67,72,73,74,
 79,80,81,86,87,88,93,94,95,100,101,102,107,108,
 109,114,115,116,121,122,123,128,129,130,135,136,
 137,142]