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A047604 as a simple table

na(n)
12
23
35
410
511
613
718
819
921
1026
1127
1229
1334
1435
1537
1642
1743
1845
1950
2051
2153
2258
2359
2461
2566
2667
2769
2874
2975
3077
3182
3283
3385
3490
3591
3693
3798
3899
39101
40106
41107
42109
43114
44115
45117
46122
47123
48125
49130
50131
51133
52138
53139
54141
55146
56147
57149
58154
59155
60157

[2,3,5,10,11,13,18,19,21,26,27,29,34,35,37,42,43,
 45,50,51,53,58,59,61,66,67,69,74,75,77,82,83,85,
 90,91,93,98,99,101,106,107,109,114,115,117,122,
 123,125,130,131,133,138,139,141,146,147,149,154,
 155,157]