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A161007 as a simple table

n a(n)
0 0
1 1
2 2
3 20
4 72
5 464
6 2080
7 11584
8 56448
9 298240
10 1499648
11 7771136
12 39536640
13 203411456
14 1039409152
15 5333401600
16 27297349632
17 139929124864
18 716615843840
19 3672097685504
20 18810048872448
21 96373660712960
22 493708103385088
23 2529394778177536
24 12958119210516480

[0,1,2,20,72,464,2080,11584,56448,298240,1499648,
 7771136,39536640,203411456,1039409152,5333401600,
 27297349632,139929124864,716615843840,
 3672097685504,18810048872448,96373660712960,
 493708103385088,2529394778177536,
 12958119210516480]

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Last modified April 24 06:07 EDT 2024. Contains 371918 sequences. (Running on oeis4.)