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A207818 as a simple table

n a(n)
1 1
2 3
3 15
4 105
5 981
6 11775
7 174309
8 3070293
9 62728749
10 1462046235
11 38446605975
12 1131448219263
13 37011386961477
14 1337106744965847
15 53005310776229283
16 2290750722850361415
17 107258522028595441911
18 5410293190992424617243
19 292567014870308385871989

[1,3,15,105,981,11775,174309,3070293,62728749,
 1462046235,38446605975,1131448219263,
 37011386961477,1337106744965847,53005310776229283,
 2290750722850361415,107258522028595441911,
 5410293190992424617243,292567014870308385871989]

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Last modified March 29 05:48 EDT 2024. Contains 371265 sequences. (Running on oeis4.)