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A012659 as a simple table

n a(n)
0 0
1 1
2 2
3 2
4 8
5 80
6 512
7 3992
8 47168
9 588800
10 7903232
11 124255232
12 2161507328
13 40505429120
14 829919658752
15 18433385276672
16 438231826239488
17 11136829247959040
18 301669044409475072
19 8662857659856269312 

[0,1,2,2,8,80,512,3992,47168,588800,7903232,
 124255232,2161507328,40505429120,829919658752,
 18433385276672,438231826239488,11136829247959040,
 301669044409475072,8662857659856269312]

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Last modified June 1 15:48 EDT 2024. Contains 373025 sequences. (Running on oeis4.)