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A047370 as a simple table

na(n)
12
23
35
49
510
612
716
817
919
1023
1124
1226
1330
1431
1533
1637
1738
1840
1944
2045
2147
2251
2352
2454
2558
2659
2761
2865
2966
3068
3172
3273
3375
3479
3580
3682
3786
3887
3989
4093
4194
4296
43100
44101
45103
46107
47108
48110
49114
50115
51117
52121
53122
54124
55128
56129
57131
58135
59136
60138
61142

[2,3,5,9,10,12,16,17,19,23,24,26,30,31,33,37,38,
 40,44,45,47,51,52,54,58,59,61,65,66,68,72,73,75,
 79,80,82,86,87,89,93,94,96,100,101,103,107,108,
 110,114,115,117,121,122,124,128,129,131,135,136,
 138,142]