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A181981 as a simple table

na(n)
03
117
241
3107
471
52267
61091
7461
81319
91151
10347
115741
122999
135279
1410139
151487
169461
17881
18659
1913007
209041
2115359
228627
2328751
2483717
2513397
2618539
2714627
2844771
2954011
3060257
3159669
32142157
3377711
3461559
35178931
3626261
37122867
38293261
3989069
4024419

[3,17,41,107,71,2267,1091,461,1319,1151,347,5741,
 2999,5279,10139,1487,9461,881,659,13007,9041,
 15359,8627,28751,83717,13397,18539,14627,44771,
 54011,60257,59669,142157,77711,61559,178931,26261,
 122867,293261,89069,24419]