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A001089 as a simple table

n a(n)
0 0
1 0
2 0
3 0
4 3
5 24
6 133
7 635
8 2807
9 11864
10 48756
11 196707
12 783750
13 3095708
14 12152855
15 47500635
16 185082495
17 719559600
18 2793121080
19 10830450780
20 41965864794
21 162539516448
22 629399492330
23 2437072038302
24 9437097796918

[0,0,0,0,3,24,133,635,2807,11864,48756,196707,
 783750,3095708,12152855,47500635,185082495,
 719559600,2793121080,10830450780,41965864794,
 162539516448,629399492330,2437072038302,
 9437097796918]

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Last modified August 16 20:15 EDT 2024. Contains 375177 sequences. (Running on oeis4.)