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A052824 as a simple table

n a(n)
0 0
1 0
2 2
3 6
4 34
5 220
6 1808
7 17388
8 194724
9 2478096
10 35418192
11 561533280
12 9785418432
13 185921027136
14 3825633439392
15 84756646285920
16 2011657535668128
17 50924796197369088
18 1369659967551038976
19 39003791158314816768
20 1172394903935534452992
21 37094744191300029964800

[0,0,2,6,34,220,1808,17388,194724,2478096,
 35418192,561533280,9785418432,185921027136,
 3825633439392,84756646285920,2011657535668128,
 50924796197369088,1369659967551038976,
 39003791158314816768,1172394903935534452992,
 37094744191300029964800]

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Last modified April 19 16:52 EDT 2024. Contains 371794 sequences. (Running on oeis4.)