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A020281 as a simple table

n a(n)
1 9
2 27
3 1027
4 1387
5 1513
6 4033
7 6533
8 9773
9 10649
10 19513
11 20491
12 20797
13 27613
14 28009
15 28939
16 29891
17 31021
18 38503
19 43877
20 55981
21 56033
22 74971
23 80137
24 82513
25 83333
26 91001
27 92101
28 112471
29 113491
30 117569
31 128627
32 130759
33 147109
34 158701
35 164609
36 164917

[9,27,1027,1387,1513,4033,6533,9773,10649,19513,
 20491,20797,27613,28009,28939,29891,31021,38503,
 43877,55981,56033,74971,80137,82513,83333,91001,
 92101,112471,113491,117569,128627,130759,147109,
 158701,164609,164917]

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Last modified March 28 18:04 EDT 2024. Contains 371254 sequences. (Running on oeis4.)