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A024432 as a simple table

n a(n)
1 1
2 0
3 3
4 1
5 20
6 41
7 147
8 1450
9 1441
10 27513
11 165814
12 166011
13 6759857
14 38623792
15 54257895
16 2366944123
17 16391013794
18 27871290287
19 1112444405811
20 11151033695300
21 24805899491473

[1,0,3,1,20,41,147,1450,1441,27513,165814,166011,
 6759857,38623792,54257895,2366944123,16391013794,
 27871290287,1112444405811,11151033695300,
 24805899491473]

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Last modified October 23 22:26 EDT 2019. Contains 328373 sequences. (Running on oeis4.)