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A099582 as a simple table

n a(n)
0 0
1 0
2 1
3 4
4 24
5 112
6 560
7 2688
8 13056
9 62976
10 304384
11 1469440
12 7096320
13 34263040
14 165441536
15 798818304
16 3857055744
17 18623496192
18 89922273280
19 434183077888
20 2096421666816
21 10122418978816
22 48875363631104
23 235991130439680

[0,0,1,4,24,112,560,2688,13056,62976,304384,
 1469440,7096320,34263040,165441536,798818304,
 3857055744,18623496192,89922273280,434183077888,
 2096421666816,10122418978816,48875363631104,
 235991130439680]

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Last modified April 25 08:27 EDT 2024. Contains 371964 sequences. (Running on oeis4.)