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A047296 as a simple table

na(n)
13
24
36
410
511
613
717
818
920
1024
1125
1227
1331
1432
1534
1638
1739
1841
1945
2046
2148
2252
2353
2455
2559
2660
2762
2866
2967
3069
3173
3274
3376
3480
3581
3683
3787
3888
3990
4094
4195
4297
43101
44102
45104
46108
47109
48111
49115
50116
51118
52122
53123
54125
55129
56130
57132
58136
59137
60139
61143

[3,4,6,10,11,13,17,18,20,24,25,27,31,32,34,38,39,
 41,45,46,48,52,53,55,59,60,62,66,67,69,73,74,76,
 80,81,83,87,88,90,94,95,97,101,102,104,108,109,
 111,115,116,118,122,123,125,129,130,132,136,137,
 139,143]