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A012259 as a simple table

n a(n)
0 1
1 1
2 1
3 5
4 17
5 121
6 721
7 6845
8 58337
9 698161
10 7734241
11 111973685
12 1526099057
13 25947503401
14 419784870961
15 8200346492525
16 153563504618177
17 3389281372287841
18 72104198836466881
19 1774459993676715365
20 42270463533824671697
21 1147649139272698443481

[1,1,1,5,17,121,721,6845,58337,698161,7734241,
 111973685,1526099057,25947503401,419784870961,
 8200346492525,153563504618177,3389281372287841,
 72104198836466881,1774459993676715365,
 42270463533824671697,1147649139272698443481]

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Last modified April 17 21:00 EDT 2024. Contains 371767 sequences. (Running on oeis4.)