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A131801 as a simple table

n a(n)
0 1
1 3
2 9
3 15
4 27
5 45
6 105
7 81
8 135
9 225
10 315
11 1155
12 243
13 405
14 675
15 945
16 1575
17 3465
18 15015
19 729
20 1215
21 2025
22 3375
23 2835
24 4725
25 10395
26 11025
27 17325
28 45045
29 255255
30 2187
31 3645
32 6075
33 10125
34 8505
35 14175
36 23625
37 31185
38 33075
39 51975
40 121275
41 135135
42 225225

[1,3,9,15,27,45,105,81,135,225,315,1155,243,405,
 675,945,1575,3465,15015,729,1215,2025,3375,2835,
 4725,10395,11025,17325,45045,255255,2187,3645,
 6075,10125,8505,14175,23625,31185,33075,51975,
 121275,135135,225225]

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Last modified June 15 02:02 EDT 2021. Contains 345042 sequences. (Running on oeis4.)