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A309171 as a simple table

n a(n)
1 1
2 1
3 1
4 7
5 1
6 2790
7 1
8 216027
9 3025
10 21730275
11 1
12 143362465643243568744
13 1
14 404056132480
15 500592722458920
16 12056706465173227408551
17 1
18 99260615209905051640711424376160950
19 1
20 105138504356810366747790360523498652392500
21 143413971571112402506500
22 768149712982621155186

[1,1,1,7,1,2790,1,216027,3025,21730275,1,
 143362465643243568744,1,404056132480,
 500592722458920,12056706465173227408551,1,
 99260615209905051640711424376160950,1,
 105138504356810366747790360523498652392500,
 143413971571112402506500,768149712982621155186]

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Last modified April 25 07:06 EDT 2024. Contains 371964 sequences. (Running on oeis4.)